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)
30 lines
No EOL
2.2 KiB
Text
30 lines
No EOL
2.2 KiB
Text
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=819
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Simple fuzzing found an integer overflow in the dec2tnef library. This allocation from Attachment::setDataFromAttachment() doesn't verify that the attacker controlled value doesn't wrap:
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.text:000227B8 8D 42 01 lea eax, [edx+1]
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.text:000227BB 89 85 68 FF FF+ mov [ebp+var_98], eax
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.text:000227C1 8B 83 CC FF FF+ mov eax, ds:(_ZSt7nothrow_ptr - 42CFCh)[ebx]
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.text:000227C7 89 44 24 04 mov [esp+4], eax
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.text:000227CB 8B 85 68 FF FF+ mov eax, [ebp+var_98]
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.text:000227D1 C1 E0 02 shl eax, 2
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.text:000227D4 89 04 24 mov [esp], eax
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.text:000227D7 89 95 5C FF FF+ mov [ebp+src], edx
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.text:000227DD 89 8D 58 FF FF+ mov [ebp+var_A8], ecx
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.text:000227E3 E8 54 22 FE FF call __ZnajRKSt9nothrow_t ; operator new[](uint,std::nothrow_t const&)
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That's (count + 1) * 4, without any checking that will succeed. The attached testcase reaches this code on Symantec Scan Engine, I'm not sure which other products use this code.
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(gdb) bt
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#1 0x07e88816 in Attachment::setDataFromAttachment(Item&) () from definitions/Decomposer/libdec2tnef.so
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#2 0x07e88abc in Attachment::setAttribute(Item&) () from definitions/Decomposer/libdec2tnef.so
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#3 0x07e8a1b4 in TNEFObject::getAttachments(_IO_FILE*, MList&) () from definitions/Decomposer/libdec2tnef.so
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#4 0x07e6c1d6 in CTNEFArchive::Open(char const*) () from definitions/Decomposer/libdec2tnef.so
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#5 0x07e6ae5f in CTNEFEngine::OpenArchive(CTNEFArchive*, bool*) () from definitions/Decomposer/libdec2tnef.so
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#6 0x07e6b8c0 in CTNEFEngine::Process(IDecomposerEx*, IDecContainerObjectEx*, IDecEventSink*, unsigned short*, char*, bool*, bool*) () from definitions/Decomposer/libdec2tnef.so
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#7 0x063d07b5 in CDecomposer::DecProcess(IDecObject*, IDecEventSink*, IDecIOCB*, unsigned short*, char*) ()
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#8 0x063d13cb in CDecomposer::Process(IDecObject*, IDecEventSink*, IDecIOCB*, unsigned short*, char*) ()
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Proof of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/40035.zip |