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)
54 lines
No EOL
2.6 KiB
Text
54 lines
No EOL
2.6 KiB
Text
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=947
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The escape handler for 0x10000e9 lacks bounds checks, and passes a user
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specified size as the size to memcpy, resulting in a stack buffer overflow:
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bool escape_10000e9(NvMiniportDeviceContext *a1, Escape10000e9 *escape) {
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...
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LOBYTE(a9) = escape_->unknown_5[1] != 0;
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LOBYTE(a8) = escape_->unknown_5[0] != 0;
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if ( !sub_DC57C(
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*(_QWORD *)(*(_QWORD *)(v4 + 104) + 1000i64),
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escape_->unknown_1,
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escape_->unknown_2,
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escape_->unknown_3,
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escape_->unknown_4,
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escape_->data,
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escape_->size,
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a8,
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a9,
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&escape_->unknown_5[2]) )
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return 0;
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escape_->header.result = 1;
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return 1;
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}
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char sub_DC57C(...) {
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...
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// escape_buf is escape_->data from previous function
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// buf_size is escape->size
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memcpy(&stack_buf, escape_buf, (unsigned int)buf_size);
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...
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Crashing context (Win 10 x64, 372.54):
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DRIVER_OVERRAN_STACK_BUFFER (f7)
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A driver has overrun a stack-based buffer. This overrun could potentially
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allow a malicious user to gain control of this machine.
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...
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STACK_TEXT:
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ffffd000`263bc188 fffff803`9d1deaf2 : 9d919d43`2d3cc8a7 00000000`000000f7 ffffd000`263bc2f0 fffff803`9d03c848 : nt!DbgBreakPointWithStatus
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ffffd000`263bc190 fffff803`9d1de4c3 : 00000000`00000003 ffffd000`263bc2f0 fffff803`9d16c600 00000000`000000f7 : nt!KiBugCheckDebugBreak+0x12
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ffffd000`263bc1f0 fffff803`9d15fa44 : 00000000`00000000 00000000`00000000 00000000`00000000 ffffc000`494d4764 : nt!KeBugCheck2+0x893
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ffffd000`263bc900 fffff800`ad8c2bc6 : 00000000`000000f7 9d919d43`2d3cc8a7 0000f6ec`74dc94fc ffff0913`8b236b03 : nt!KeBugCheckEx+0x104
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ffffd000`263bc940 fffff800`ad7fc6f7 : c0004492`55400400 ffff8000`00000000 ffffc000`44925540 00000000`00000000 : nvlddmkm+0x192bc6
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ffffd000`263bc980 ffffc000`585e78a0 : 00000000`000005d4 00430043`00310030 4666744e`03610107 00000000`00000000 : nvlddmkm+0xcc6f7
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ffffd000`263bce70 00000000`000005d4 : 00430043`00310030 4666744e`03610107 00000000`00000000 00000c48`01380702 : 0xffffc000`585e78a0
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ffffd000`263bce78 00430043`00310030 : 4666744e`03610107 00000000`00000000 00000c48`01380702 00010000`000166c2 : 0x5d4
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ffffd000`263bce80 4666744e`03610107 : 00000000`00000000 00000c48`01380702 00010000`000166c2 00000000`00000000 : 0x00430043`00310030
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ffffd000`263bce88 00000000`00000000 : 00000c48`01380702 00010000`000166c2 00000000`00000000 00000000`00000000 : 0x4666744e`03610107
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Proof of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/40668.zip |