Microsoft Windows - 'win32k!NtGdiGetRealizationInfo' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1181 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7-10 through the win32k!NtGdiGetRealizationInfo system call. The concrete layout of the...

Microsoft Windows - 'win32k!NtGdiGetTextMetricsW' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1180 We have discovered that it is possible to disclose portions of uninitialized kernel stack memory to user-mode applications in Windows 7 other systems untested through the win32k!NtGdiGetTextMetricsW system call. The output...

Microsoft Windows - 'nt!NtQueryInformationTransaction (information class 1)' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1196 We have discovered that the nt!NtQueryInformationTransaction system call called with the 1 information class discloses portions of uninitialized kernel stack memory to user-mode clients, on Windows 7 to Windows 10. The...

Microsoft Windows - 'win32k!NtGdiMakeFontDir' Kernel Stack Memory Disclosure

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1191 We have discovered that the win32k!NtGdiMakeFontDir system call discloses large portions of uninitialized kernel stack memory to user-mode clients. The attached proof of concept code which is specific to Windows 7 32-bit works...

Microsoft Windows - 'nt!NtQueryInformationJobObject (BasicLimitInformation_ ExtendedLimitInformation)' Kernel Stack Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1189&desc=2 We have discovered that the nt!NtQueryInformationJobObject system call corresponding to the documented QueryInformationJobObject API function called with the JobObjectExtendedLimitInformation information class disclos...

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 - '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...

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 - 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...

SMBv1 to be Disabled in Windows Fall Creators Update

The crusty SMBv1 file-sharing protocol, abused by a NSA exploit last month that spread WannaCry, will be removed from Windows 10 starting with the upcoming Redstone 3 update. “We can confirm that SMBv1 is being removed for Redstone 3,” a Microsoft representative told Threatpost. Redstone 3, a...

Tales from the MSRC: from pixels to POC

Is this thing still on? It’s been a while since we’ve posted to this blog and we think it’s time to start posting deep technical content about Security Research & Defense SRD again. For readers who are new or may have forgotten, this blog is the home of the MSRC Vulnerabilities & Mitigations...

Tales from the MSRC: from pixels to POC

Is this thing still on? It’s been a while since we’ve posted to this blog and we think it’s time to start posting deep technical content about Security Research & Defense SRD again. For readers who are new or may have forgotten, this blog is the home of the MSRC Vulnerabilities & Mitigations...

CVE-2017-5082

Failure to take advantage of available mitigations in credit card autofill in Google Chrome prior to 59.0.3071.92 for Android allowed a local attacker to take screen shots of credit card information via a crafted HTML page...

TerraMaster NAS TOS <= 3.0.30 Unauthenticated RCE as Root

Recently I bought a TerraMaster F2-420 NAS from Amazon in order to store my private code, backups and this kind of stuff. As soon as it arrived I started to play with its web interface and eventually I wanted to see how it was implemented, moreover I was curious to see if I could find any remotel...

Intel SSD Toolbox 3.4.3 DLL Hijacking

Hi @ll, executable installers built with Intels Installation Framework, for example "Intel SSD Toolbox - v3.4.3.exe", available from , expose two vulnerabilities, both resulting in arbitrary code execution with escalation of privilege. Vulnerability 1: On a fully patched Windows 7 SP1 they load a...

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...