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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Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=894
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The DxgkDdiEscape handler for 0x700010d accepts a user provided pointer as the
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destination for a memcpy call, without doing any checks on said pointer.
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void __fastcall escape_700010D(NvMiniportDeviceContext* ctx, NvEscapeData *escape)
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{
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...
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v8 = escape->unknown_2;
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if ( v8 == 1 )
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{
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data.size = escape->size;
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data.buf = ExAllocatePoolWithTag((POOL_TYPE)512, 0xC08i64 * data.size, 0x7061564Eu);
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v9 = Escape7Handler(0i64, dword_7DCB84, dword_7DCB84, 626, &data, 0x190);
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}
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...
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else if ( escape->unknown_2 == 1 )
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{
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memcpy(escape->user_ptr, data.buf, 3080i64 * escape->size);
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(Win 10 x64 372.54) crashing context with PoC (in memcpy) on a write to 0x4141414141414141:
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SYSTEM_SERVICE_EXCEPTION (3b)
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...
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CONTEXT: ffffd0002d2ab5c0 -- (.cxr 0xffffd0002d2ab5c0)
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rax=0000000000000001 rbx=ffffc0016c9b9b40 rcx=000000000000000f
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rdx=bebe9ebf4b4e0ecf rsi=0000000000000001 rdi=000000007061564e
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rip=fffff8005488ab00 rsp=ffffd0002d2abfe8 rbp=ffffd0002d2ac0f0
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r8=0000000000000bf9 r9=ffffd00024014ac0 r10=0000000000000000
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r11=4141414141414141 r12=0000000000000340 r13=fffff800542b0000
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r14=ffffe0008fb2d000 r15=0000000000000001
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iopl=0 nv up ei pl nz ac po nc
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cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00010216
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nvlddmkm+0x5dab00:
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fffff800`5488ab00 f3410f7f03 movdqu xmmword ptr [r11],xmm0 ds:002b:41414141`41414141=????????????????????????????????
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To reproduce, compile the PoC as a x64 binary (requires linking with
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setupapi.lib, and WDK for D3DKMTEscape), and run. It may require some changes
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as for it to work as the escape data must contain the right values (e.g. a
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field that appears to be gpu bus device function). My PoC should hopefully set
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all the right values for the machine it's running on.
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Proof of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/40657.zip |