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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1.6 KiB
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Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=831
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IOSurfaceRootUserClient stores a task struct pointer (passed in via IOServiceOpen) in the field at +0xf0 without taking a reference.
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By killing the corrisponding task we can free this pointer leaving the user client with a dangling pointer. We can get this pointer used
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by calling the create_surface_fast_path external method which will try to read and use the memory map off of the free'd task struct.
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This bug could be leveraged for kernel memory corruption and is reachable from interesting sandboxes including safari and chrome.
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build: clang -o surfaceroot_uaf surfaceroot_uaf.c -framework IOKit
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You should set gzalloc_min=1024 gzalloc_max=2048 or similar to actually fault on the UaF - otherwise you might see some weird panics!
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tested on OS X 10.11.5 (15F34) on MacBookAir5,2
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#####################################
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another PoC for "task_t considered harmful"
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since 10.11.6 blocks us from creating userclients with other task's task ports
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this time we create an IOSurface in the child and send back a send right to that
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IOSurface to the parent (rather than sending the child's task port.)
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The child then execs a suid-root binary which blocks on stderr and the parent
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creates an IOSurface which maps any (writable?) page of the euid-0 process into theirs.
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Overwrite a function pointer and win.
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No race conditions because the task struct pointer is on the kernel heap, not the stack.
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Proofs of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/40653.zip |