FF Sandbox Escape (CVE-2020-12388)

By James Forshaw, Project Zero In my previous blog post I discussed an issue with the Windows Kernel’s handling of Restricted Tokens which allowed me to escape the Chrome GPU sandbox. Originally I’d planned to use Firefox for the proof-of-concept as Firefox uses the same effective sandbox level a...

UBUNTU-CVE-2018-17479

Incorrect object lifetime calculations in GPU code in Google Chrome prior to 70.0.3538.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page...

Intel Content Protection HECI Service - Type Confusion Privilege Escalation Exploit

Exploit for windows platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1358 Intel Content Protection HECI Service Type Confusion EoP Platform: Tested on Windows 10, service version 9.0.2.117 Class: Elevation of Privilege Summary: The Intel Content...

Intel Content Protection HECI Service - Type Confusion Privilege Escalation

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1358 Intel Content Protection HECI Service Type Confusion EoP Platform: Tested on Windows 10, service version 9.0.2.117 Class: Elevation of Privilege Summary: The Intel Content Protection HECI Service exposes a DCOM object to all...

Intel Content Protection HECI Service - Type Confusion Privilege Escalation

Intel Content Protection HECI Service - Type Confusion Privilege Escalation Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1358 Intel Content Protection HECI Service Type Confusion EoP Platform: Tested on Windows 10, service version 9.0.2.117 Class: Elevation of Privilege...

Apple Mac OSX Kernel - GeForce GPU Driver Stack Buffer Overflow

Apple Mac OSX Kernel - GeForce GPU Driver Stack Buffer Overflow / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=724 nvAPIClient::Escape is the sole external method of nvAcclerator userclient type 0x2a0. It implements its own method and parameter demuxing using the struct-in...

Apple Mac OSX - Kernel Stack Buffer Overflow in GeForce GPU Driver

Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=724 nvAPIClient::Escape is the sole external method of nvAcclerator userclient type 0x2a0. It implements its own method and parameter demuxing using the struct-in struct-out buffer...

Apple Mac OSX - Kernel Unchecked Array Index Used to Read Object Pointer Then Call Virtual Method in

Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=709 nvDevice::ReleaseDeviceTexture is external method 0x10a of userclient 5 of the geforce IOAccelerator. It takes a single uint argument text:000000000001BCD2 mov r14d, esi...

Apple Mac OSX - Kernel Use-After-Free and Double Delete Due to Incorrect Locking in Intel GPU Driver

Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=708 The external methods IGAccelGLContext::unmapusermemory and IGAccelCLContext::unmapusermemory take an 8 byte struct input which is a user-space pointer previously passed to the...

Apple Mac OSX Kernel - Unchecked Array Index Used to Read Object Pointer Then Call Virtual Method in Nvidia Geforce Driver

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=709 nvDevice::ReleaseDeviceTexture is external method 0x10a of userclient 5 of the geforce IOAccelerator. It takes a single uint argument text:000000000001BCD2 mov r14d, esi ... text:000000000001BD08 and r14d, 7FFFFFFFh -- clear...