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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)
44 lines
No EOL
3.3 KiB
Text
44 lines
No EOL
3.3 KiB
Text
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1153
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We have discovered that the win32k!NtGdiEnumFonts system call handler discloses very large portions of uninitialized pool memory to user-mode clients.
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The issue can be reproduced by running the attached proof-of-concept program on a system with the Special Pools mechanism enabled for win32k.sys. Then, it is clearly visible that a significant number of the bytes are equal to the markers inserted by Special Pools, and would otherwise contain leftover data that was previously stored in that memory region. In this case, the marker byte is 0x47 ("G"), and a dump of the initial 512 bytes of output is shown below. A full dump of the output can be found in the attached file.
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--- cut ---
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00000000: e4 01 00 00 70 01 00 00 04 00 00 00 25 00 00 00 ....p.......%...
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00000010: 12 00 00 00 00 00 00 00 00 00 00 00 90 01 00 00 ................
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00000020: 00 00 00 ee 03 02 01 31 43 00 6f 00 6e 00 73 00 .......1C.o.n.s.
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00000030: 6f 00 6c 00 61 00 73 00 00 00 47 47 47 47 47 47 o.l.a.s...GGGGGG
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00000040: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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00000050: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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00000060: 47 47 47 47 47 47 00 00 43 00 6f 00 6e 00 73 00 GGGGGG..C.o.n.s.
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00000070: 6f 00 6c 00 61 00 73 00 00 00 47 47 47 47 47 47 o.l.a.s...GGGGGG
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00000080: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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00000090: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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000000a0: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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000000b0: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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000000c0: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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000000d0: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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000000e0: 47 47 47 47 47 47 00 00 52 00 65 00 67 00 75 00 GGGGGG..R.e.g.u.
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000000f0: 6c 00 61 00 72 00 00 00 47 47 47 47 47 47 47 47 l.a.r...GGGGGGGG
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00000100: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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00000110: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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00000120: 47 47 47 47 47 47 00 00 43 00 65 00 6e 00 74 00 GGGGGG..C.e.n.t.
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00000130: 72 00 61 00 6c 00 20 00 45 00 75 00 72 00 6f 00 r.a.l. .E.u.r.o.
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00000140: 70 00 65 00 61 00 6e 00 00 00 47 47 47 47 47 47 p.e.a.n...GGGGGG
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00000150: 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 47 GGGGGGGGGGGGGGGG
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00000160: 47 47 47 47 47 47 47 47 64 76 00 08 00 00 00 00 GGGGGGGGdv......
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00000170: 47 47 47 47 00 ff 01 02 25 00 00 00 1d 00 00 00 GGGG....%.......
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00000180: 08 00 00 00 05 00 00 00 00 00 00 00 11 00 00 00 ................
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00000190: 23 00 00 00 90 01 00 00 00 00 00 00 60 00 00 00 #...........`...
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000001a0: 60 00 00 00 00 00 ff fe 01 00 02 00 00 00 00 36 `..............6
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000001b0: ee 47 47 47 40 00 24 00 00 08 00 00 5e 09 00 00 .GGG@.$.....^...
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000001c0: 66 04 00 00 ff 02 00 e1 ff fc 00 40 09 00 00 00 f..........@....
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000001d0: 00 00 00 00 9f 01 00 60 00 00 d7 df 61 6c 00 08 .......`....al..
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000001e0: 00 00 00 00 e4 01 00 00 70 01 00 00 04 00 00 00 ........p.......
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000001f0: 25 00 00 00 12 00 00 00 00 00 00 00 00 00 00 00 %...............
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--- cut ---
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Proof of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/42214.zip |