ed0e1e4d44
1979 changes to exploits/shellcodes Couchdb 1.5.0 - 'uuids' Denial of Service Apache CouchDB 1.5.0 - 'uuids' Denial of Service Beyond Remote 2.2.5.3 - Denial of Service (PoC) udisks2 2.8.0 - Denial of Service (PoC) Termite 3.4 - Denial of Service (PoC) SoftX FTP Client 3.3 - Denial of Service (PoC) Silverstripe 2.3.5 - Cross-Site Request Forgery / Open redirection SilverStripe CMS 2.3.5 - Cross-Site Request Forgery / Open Redirection Silverstripe CMS 3.0.2 - Multiple Vulnerabilities SilverStripe CMS 3.0.2 - Multiple Vulnerabilities Silverstripe CMS 2.4 - File Renaming Security Bypass SilverStripe CMS 2.4 - File Renaming Security Bypass Silverstripe CMS 2.4.5 - Multiple Cross-Site Scripting Vulnerabilities SilverStripe CMS 2.4.5 - Multiple Cross-Site Scripting Vulnerabilities Silverstripe CMS 2.4.7 - 'install.php' PHP Code Injection SilverStripe CMS 2.4.7 - 'install.php' PHP Code Injection Silverstripe Pixlr Image Editor - 'upload.php' Arbitrary File Upload SilverStripe CMS Pixlr Image Editor - 'upload.php' Arbitrary File Upload Silverstripe CMS 2.4.x - 'BackURL' Open Redirection SilverStripe CMS 2.4.x - 'BackURL' Open Redirection Silverstripe CMS - 'MemberLoginForm.php' Information Disclosure SilverStripe CMS - 'MemberLoginForm.php' Information Disclosure Silverstripe CMS - Multiple HTML Injection Vulnerabilities SilverStripe CMS - Multiple HTML Injection Vulnerabilities Apache CouchDB 1.7.0 and 2.x before 2.1.1 - Remote Privilege Escalation Apache CouchDB 1.7.0 / 2.x < 2.1.1 - Remote Privilege Escalation Monstra CMS before 3.0.4 - Cross-Site Scripting Monstra CMS < 3.0.4 - Cross-Site Scripting (2) Monstra CMS < 3.0.4 - Cross-Site Scripting Monstra CMS < 3.0.4 - Cross-Site Scripting (1) Navigate CMS 2.8 - Cross-Site Scripting Collectric CMU 1.0 - 'lang' SQL injection Joomla! Component CW Article Attachments 1.0.6 - 'id' SQL Injection LG SuperSign EZ CMS 2.5 - Remote Code Execution MyBB Visual Editor 1.8.18 - Cross-Site Scripting Joomla! Component AMGallery 1.2.3 - 'filter_category_id' SQL Injection Joomla! Component Micro Deal Factory 2.4.0 - 'id' SQL Injection RICOH Aficio MP 301 Printer - Cross-Site Scripting Joomla! Component Auction Factory 4.5.5 - 'filter_order' SQL Injection RICOH MP C6003 Printer - Cross-Site Scripting Linux/ARM - Egghunter (PWN!) + execve(_/bin/sh__ NULL_ NULL) Shellcode (28 Bytes) Linux/ARM - sigaction() Based Egghunter (PWN!) + execve(_/bin/sh__ NULL_ NULL) Shellcode (52 Bytes)
66 lines
No EOL
3.3 KiB
Text
66 lines
No EOL
3.3 KiB
Text
Source: https://code.google.com/p/google-security-research/issues/detail?id=414&can=1
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The following crash was observed in MS Office 2007 running under Windows 2003 x86. Microsoft Office File Validation Add-In is disabled and application verified was enabled for testing and reproduction. This sample did not reproduce in Office 2010 running on Windows 7 x86.
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The attached minimized PoC that produces the crash with 2 bit changes from the original file at offsets 0x11E60 and 0x1515F. Standard office document parsers did not reveal any significance about this location.
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Attached files:
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Fuzzed minimized PoC: 1567070353_min.doc
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Fuzzed non-minimized PoC: 1567070353_crash.doc
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Original non-fuzzed file: 1567070353_orig.doc
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DLL Versions:
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mso.dll: 12.0.6721.5000
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wwlib.dll: 12.0.6720.5000
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Observed Crash:
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eax=00000001 ebx=00000004 ecx=0189ff18 edx=00000019 esi=32646a30 edi=0db0eff8
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eip=32fbca76 esp=0012bc98 ebp=0012bcb8 iopl=0 nv up ei pl nz na po nc
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cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010202
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32fbca73 8b7df8 mov edi,dword ptr [ebp-8]
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=> 32fbca76 f6470201 test byte ptr [edi+2],1 ds:0023:0db0effa=??
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32fbca7a 7419 je mso!Ordinal2690+0x476 (32fbca95)
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32fbca7c 833e07 cmp dword ptr [esi],7
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32fbca7f 7414 je mso!Ordinal2690+0x476 (32fbca95)
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32fbca81 8b4508 mov eax,dword ptr [ebp+8]
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32fbca84 6a20 push 20h
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32fbca86 ff7010 push dword ptr [eax+10h]
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32fbca89 8d4dfc lea ecx,[ebp-4]
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32fbca8c 51 push ecx
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32fbca8d ff10 call dword ptr [eax]
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32fbca8f 8127fffffeff and dword ptr [edi],0FFFEFFFFh
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Stack Trace:
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0:000> kb 8
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ChildEBP RetAddr Args to Child
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WARNING: Stack unwind information not available. Following frames may be wrong.
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0012bcb8 32fbcdc3 0012be28 0d9f4fe8 00000000 mso!Ordinal2690+0x457
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0012bccc 32fbce5b 0012be28 0d9f4fe8 0012be28 mso!Ordinal2690+0x7a4
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0012bd20 32fbc93e 0012be28 0d9f4fe8 0ddceeb8 mso!Ordinal2690+0x83c
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0012bd74 32fbcd73 0012be28 0d9f4fe8 0db2f45a mso!Ordinal2690+0x31f
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0012bd94 316dfe8f 0dbe8e38 0012be28 317e9c10 mso!Ordinal2690+0x754
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0012bdb0 317e9aa4 0012be08 00000000 00000000 wwlib!wdCommandDispatch+0xcd37
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0012bde4 31980e8d 0012be08 000000b4 038b78bc wwlib!wdCommandDispatch+0x11694c
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0012c07c 31980b0f 0db2c9c0 00000000 00000001 wwlib!wdCommandDispatch+0x2add35
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In this crash the value being dereferenced in edi is free-ed memory:
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0:000> !heap -p -a 0xdb0eff8
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address 0db0eff8 found in
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_DPH_HEAP_ROOT @ 1151000
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in free-ed allocation ( DPH_HEAP_BLOCK: VirtAddr VirtSize)
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d9e5240: db0e000 2000
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7c83e330 ntdll!RtlFreeHeap+0x0000011a
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0189fe9c vfbasics!AVrfpRtlFreeHeap+0x000000f8
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331039d5 mso!Ordinal1743+0x00002d4d
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329c91d1 mso!MsoFreePv+0x0000003f
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329c913c mso!Ordinal519+0x00000017
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32a54dcc mso!Ordinal320+0x00000021
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32bb6f2e mso!Ordinal379+0x00000eae
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There is a 1-bit clear at the location specified by edi shortly after the faulting eip location as well making this an exploitable condition.
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Proof of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/37913.zip |