How to Mitigate the Threat Cryptocurrency Mining Poses to Enterprise Security

The growing popularity of Bitcoin and other cryptocurrencies is generating curiosity—and concern—among security specialists. Crypto mining software has been found on user machines, often installed by botnets. Organizations need to understand the risks posed by this software and what actions, if...

Important product update: Fixes for Meltdown and Spectre exploits in virtual machines; Virtuozzo 6.0 Update 12 Hotfix 21 (6.0.12-3698)

Hotfix 21 for Virtuozzo 6.0 Update 12 provides fixes for Meltdown and Spectre exploits in virtual machines as well as stability and usability bug fixes. NOTE: For clusters with CPU pools, follow the instructions at https://help.virtuozzo.com/customer/en/portal/articles/2919459. Vulnerability id:...

Apache Httpd < 2.4.33 : Possible write of after free on HTTP/2 stream shutdown

When an HTTP/2 stream was destroyed after being handled, the Apache HTTP Server prior to version 2.4.33 could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerabilty hard to trigger in usual configurations, the reporter...

Microsoft Windows - 'nt!NtQuerySystemInformation (information class 138_ QueryMemoryTopologyInformation)' Kernel Pool Memory Disclosure

/ We have discovered that the nt!NtQuerySystemInformation system call invoked with the 138 information class discloses portions of uninitialized kernel pool memory to user-mode clients. The specific information class is handled by an internal nt!ExpQueryMemoryTopologyInformation function. While w...

Microsoft Windows - nt!NtQuerySystemInformation (information class 138_ QueryMemoryTopologyInformation) Kernel Pool Memory Disclosure

Microsoft Windows - nt!NtQuerySystemInformation information class 138 QueryMemoryTopologyInformation Kernel Pool Memory Disclosure / We have discovered that the nt!NtQuerySystemInformation system call invoked with the 138 information class discloses portions of uninitialized kernel pool memory to...

UBUNTU-CVE-2017-12155

A resource-permission flaw was found in the openstack-tripleo-heat-templates package where ceph.client.openstack.keyring is created as world-readable. A local attacker with access to the key could read or modify data on Ceph cluster pools for OpenStack as though the attacker were the OpenStack...

Microsoft Windows 10 - 'nt!NtQueryDirectoryFile (luafv!LuafvCopyDirectoryEntry)' Pool Memory Disclosure

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1361 We have discovered that the nt!NtQueryDirectoryFile system call discloses portions of uninitialized pool memory to user-mode clients on Windows 10, due to uninitialized fields in the output structure being copied to the...

Microsoft Windows 10 - nt!NtQueryDirectoryFile (luafv!LuafvCopyDirectoryEntry) Pool Memory Disclosure

Microsoft Windows 10 - nt!NtQueryDirectoryFile luafv!LuafvCopyDirectoryEntry Pool Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1361 We have discovered that the nt!NtQueryDirectoryFile system call discloses portions of uninitialized pool memory to user-mode...

Microsoft Windows Kernel Local Information Disclosure Vulnerability(CVE-2017-11785)

We have discovered that the nt!NtQueryObject syscall handler discloses portions of uninitialized pool memory to user-mode clients when the following conditions are met: 1. It is invoked with the ObjectNameInformation information class and a file object associated with a file on local disk other...

Microsoft Windows Kernel - win32k!NtGdiGetGlyphOutline Pool Memory Disclosure

Microsoft Windows Kernel - win32k!NtGdiGetGlyphOutline Pool Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1267&desc=2 We have discovered that the win32k!NtGdiGetGlyphOutline system call handler may disclose large portions of uninitialized pool memory to...

Satoshi Bomb

Let us discuss what defines the profitability of bitcoin mining, what principles for mining speed adaptation were initially embedded into it, and why these principles can lead to the failure of the cryptocurrency in the long run. We assume that the reader has an idea of basic Bitcoin mechanics su...

Microsoft Windows Kernel Local Information Disclosure Vulnerability(CVE-2017-8564)

We have discovered that the handler of the 0x120007 IOCTL in nsiproxy.sys \.\Nsi device discloses portions of uninitialized pool memory to user-mode clients, likely due to output structure alignment holes. On our test Windows 7 32-bit workstation, an example layout of the output buffer is as...

Microsoft Windows Kernel - IOCTL 0x120007 (NsiGetParameter) nsiproxy/netio Pool Memory Disclosure

Exploit for windows platform in category dos / poc / We have discovered that the handler of the 0x120007 IOCTL in nsiproxy.sys \.\Nsi device discloses portions of uninitialized pool memory to user-mode clients, likely due to output structure alignment holes. On our test Windows 7 32-bit...

Microsoft Windows Kernel - IOCTL 0x120007 NsiGetParameter nsiproxynetio Pool Memory Disclosure

Microsoft Windows Kernel - IOCTL 0x120007 NsiGetParameter nsiproxynetio Pool Memory Disclosure / We have discovered that the handler of the 0x120007 IOCTL in nsiproxy.sys \.\Nsi device discloses portions of uninitialized pool memory to user-mode clients, likely due to output structure alignment...

Windows Kernel pool memory disclosure in nt!NtNotifyChangeDirectoryFile(CVE-2017-0299)

We have discovered that the nt!NtNotifyChangeDirectoryFile system call discloses portions of uninitialized pool memory to user-mode clients, due to output structure alignment holes. On our test Windows 10 32-bit workstation, an example layout of the output buffer is as follows: --- cut ---...

Microsoft Windows Kernel - ATMFD.DLL Out-of-Bounds Read due to Malformed Name INDEX in the CFF Table

Microsoft Windows Kernel - ATMFD.DLL Out-of-Bounds Read due to Malformed Name INDEX in the CFF Table Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1213 We have encountered a Windows kernel crash in the ATMFD.DLL OpenType driver while processing a corrupted OTF font file, see...

Microsoft Windows - win32k!NtGdiEnumFonts Kernel Pool Memory Disclosure Exploit

Exploit for windows platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1153 We have discovered that the win32k!NtGdiEnumFonts system call handler discloses very large portions of uninitialized pool memory to user-mode clients. The issue can be...

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 - 'win32k!NtGdiEnumFonts' Kernel Pool Memory Disclosure

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1153 We have discovered that the win32k!NtGdiEnumFonts system call handler discloses very large portions of uninitialized pool memory to user-mode clients. The issue can be reproduced by running the attached proof-of-concept progra...

Microsoft Windows - IOCTL_MOUNTMGR_QUERY_POINTS Kernel Mountmgr Pool Memory Disclosure

Microsoft Windows - IOCTLMOUNTMGRQUERYPOINTS Kernel Mountmgr Pool Memory Disclosure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1150&desc=2 We have discovered that the handler of the IOCTLMOUNTMGRQUERYPOINTS IOCTL in mountmgr.sys discloses portions of uninitialized pool...