Microsoft Windows - nt!NtQueryInformationProcess (ProcessVmCounters) Kernel Stack Memory Disclosure

Microsoft Windows - nt!NtQueryInformationProcess ProcessVmCounters Kernel Stack Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1190&desc=2 We have discovered that the nt!NtQueryInformationProcess system call called with the ProcessVmCounters information clas...

Microsoft Windows - IOCTL_DISK_GET_DRIVE_GEOMETRY_EX Kernel partmgr Pool Memory Disclosure

Microsoft Windows - IOCTLDISKGETDRIVEGEOMETRYEX Kernel partmgr Pool Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1156&desc=2 We have discovered that the handler of the IOCTLDISKGETDRIVEGEOMETRYEX IOCTL in partmgr.sys discloses portions of uninitialized poo...

Microsoft Windows - nt!NtQueryVolumeInformationFile (FileFsVolumeInformation) Kernel Pool Memory Dis

Exploit for windows platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1166 We have discovered that the nt!NtQueryVolumeInformationFile system call discloses portions of uninitialized pool memory to user-mode clients, due to output structure alignme...

Microsoft Windows - nt!NtNotifyChangeDirectoryFile Kernel Pool Memory Disclosure Exploit

Exploit for windows platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1169 We have discovered that the nt!NtNotifyChangeDirectoryFile system call discloses portions of uninitialized pool memory to user-mode clients, due to output structure alignmen...

Microsoft Windows - nt!NtNotifyChangeDirectoryFile Kernel Pool Memory Disclosure

Microsoft Windows - nt!NtNotifyChangeDirectoryFile Kernel Pool Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1169 We have discovered that the nt!NtNotifyChangeDirectoryFile system call discloses portions of uninitialized pool memory to user-mode clients, du...

Microsoft Windows - IOCTL_DISK_GET_DRIVE_LAYOUT_EX Kernel partmgr Pool Memory Disclosure

Microsoft Windows - IOCTLDISKGETDRIVELAYOUTEX Kernel partmgr Pool Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1159 We have discovered that the handler of the IOCTLDISKGETDRIVELAYOUTEX IOCTL in partmgr.sys discloses portions of uninitialized pool memory to...

Microsoft Windows - 'IOCTL_DISK_GET_DRIVE_LAYOUT_EX' Kernel partmgr Pool Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1159 We have discovered that the handler of the IOCTLDISKGETDRIVELAYOUTEX IOCTL in partmgr.sys discloses portions of uninitialized pool memory to user-mode clients. The issue can be reproduced by running the attached...

Microsoft Windows - 'IOCTL_DISK_GET_DRIVE_GEOMETRY_EX' Kernel partmgr Pool Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1156&desc=2 We have discovered that the handler of the IOCTLDISKGETDRIVEGEOMETRYEX IOCTL in partmgr.sys discloses portions of uninitialized pool memory to user-mode clients, due to output structure alignment holes. On our test...

Mark Dowd on Exploit Mitigation Development

Mark Dowd, fresh off his 2017 Security Analyst Summit keynote, discusses why certain exploit mitigations have been so successful in driving up the cost of exploit development for attackers...

Microsoft Windows 10 Kernel - nt!NtTraceControl (EtwpSetProviderTraits) Pool Memory Disclosure Explo

Exploit for windows platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1161 We have discovered that the handler of the nt!NtTraceControl system call specifically the EtwpSetProviderTraitsUm functionality, opcode 0x1E discloses portions of...

Microsoft Windows 7 Kernel - Uninitialized Memory in the Default dacl Descriptor of System Processes Token

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1145 We have observed on Windows 7 32-bit that for unclear reasons, the kernel-mode structure containing the default DACL of system processes' tokens lsass.exe, services.exe, ... has 8 uninitialized bytes at the end, as the size ...

Microsoft Windows 10 Kernel - 'nt!NtTraceControl (EtwpSetProviderTraits)' Pool Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1161 We have discovered that the handler of the nt!NtTraceControl system call specifically the EtwpSetProviderTraitsUm functionality, opcode 0x1E discloses portions of uninitialized pool memory to user-mode clients on Windows 10...

New COOP Attack Method Highlights Weaknesses In Microsoft's CFG Defenses

Researchers at Endgame have been evaluating an exploitation technique called Counterfeit Object-Oriented Programming COOP to bypass Control Flow Integrity CFI implementations such as that used by Microsoft to harden the defenses of Windows 10. Microsoft added its mitigation, called Control Flow...

Chrome Defaults to HTML5 over Adobe Flash Starting in Q4

As zero days in Adobe Flash Player continue to bubble to the surface, major technology players are announcing their plans to shove the maligned software aside in favor of HTML5. Google is the latest, announcing recently that by Q4 of this year, HTML5 would be the default in the Chrome browser,...

CVE-2016-1019: A New Flash Exploit Included in Magnitude Exploit Kit

On April 2, security researcher @Kafeine at Proofpoint discovered a change to the Magnitude Exploit Kit. Thanks to their collaboration, we analyzed the sample and discovered that Magnitude EK was exploiting a previously unknown vulnerability in Adobe Flash Player CVE-2016-1019. The in-the-wild...

Enabling QR codes in Internet Explorer, or a story of a cross-platform memory disclosure

Posted by Mateusz Jurczyk of Google Project Zero In the previous series of posts parts 1 2 3 4, we discussed the exploitation process of a serious “blend” vulnerability CVE-2015-0093 / CVE-2015-3052, which was special in that it provided the attacker with an extremely powerful primitive arbitrary...

Significant Flash exploit mitigations are live in v18.0.0.209

Posted by Mark Brand and Chris Evans, isolators of heaps Whilst Project Zero has gained a reputation for vulnerability and exploitation research, that's not all that we do. One of the main reasons we perform this research is to provide data to defenders; and one of the things that defenders can d...

CUPS 2.0.3 - Multiple Vulnerabilities

Exploit for multiple platform in category remote exploits Source: http://googleprojectzero.blogspot.se/2015/06/owning-internet-printing-case-study-in.html Abstract Modern exploit mitigations draw attackers into a game of diminishing marginal returns. With each additional mitigation added, a subse...

CUPS XSS / String Handling / Improper Teardown

Source: http://googleprojectzero.blogspot.se/2015/06/owning-internet-printing-case-study-in.html Abstract Modern exploit mitigations draw attackers into a game of diminishing marginal returns. With each additional mitigation added, a subset of software bugs become unexploitable, and others become...

CUPS 2.0.3 - Multiple Vulnerabilities

CUPS 2.0.3 - Multiple Vulnerabilities Source: http://googleprojectzero.blogspot.se/2015/06/owning-internet-printing-case-study-in.html Abstract Modern exploit mitigations draw attackers into a game of diminishing marginal returns. With each additional mitigation added, a subset of software bugs...