CVE-2017-0100
published 2017-03-17CVE-2017-0100: A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10…
PriorityP349high7.8CVSS 3.0
AVLACLPRLUINSUCHIHAH
EXPLOIT
EPSS
4.96%
91.1th percentile
A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows local users to gain privileges via a crafted application, aka "Windows HelpPane Elevation of Privilege Vulnerability."
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2012 | — | — |
| microsoft_corporation | windows_helppane | — | — |
| msrc | windows_10_for_32-bit_systems | — | — |
| msrc | windows_10_for_x64-based_systems | — | — |
| msrc | windows_10_version_1511_for_32-bit_systems | — | — |
| msrc | windows_10_version_1511_for_x64-based_systems | — | — |
| msrc | windows_10_version_1607_for_32-bit_systems | — | — |
| msrc | windows_10_version_1607_for_x64-based_systems | — | — |
| msrc | windows_7_for_32-bit_systems_service_pack_1 | — | — |
| msrc | windows_7_for_x64-based_systems_service_pack_1 | — | — |
| msrc | windows_8.1_for_32-bit_systems | — | — |
| msrc | windows_8.1_for_x64-based_systems | — | — |
| msrc | windows_rt_8.1 | — | — |
| msrc | windows_server_2008_r2_for_itanium-based_systems_service_pack_1 | — | — |
| msrc | windows_server_2008_r2_for_x64-based_systems_service_pack_1 | — | — |
| msrc | windows_server_2012 | — | — |
| msrc | windows_server_2012_r2 | — | — |
| msrc | windows_server_2016 | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Monitor for COM/DCOM activation requests using the Session Moniker pattern ('session:N!new:') targeting CLSID 8cec58ae-07a1-11d9-b15e-000d56bfe6ee (HxHelpPaneServer) from non-administrative user processes. ↗
- →Alert on Helppane.exe spawning child processes (e.g. notepad.exe or arbitrary executables) in a session different from the calling user's session, which indicates abuse of the IHxHelpPaneServer::Execute method. ↗
- ·Exploitation requires at least two interactive user sessions on the same machine (e.g. Terminal Services or Fast User Switching); single-session environments are not directly exploitable via this path. ↗
- ·Session 0 (service session) cannot be targeted, limiting the attack to interactive user sessions only. ↗
CVSS provenance
nvdv3.07.8HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.4MEDIUMAV:L/AC:M/Au:N/C:P/I:P/A:P
vendor_msrc6.6MEDIUM
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Microsoft
Windows COM Session Elevation of Privilege Vulnerability
vendor_msrc·2017-03-14·CVSS 6.6
CVE-2017-0100 [HIGH] Windows COM Session Elevation of Privilege Vulnerability
Windows COM Session Elevation of Privilege Vulnerability
Description: An elevation of privilege exists in Windows when a DCOM object in Helppane.exe, configured to run as the interactive user, fails to properly authenticate the client. An attacker who successfully exploited the vulnerability could run arbitrary code in another user's session.
To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability after another user logged on to the same system via Terminal Services or Fast User Switching.
The update addresses the vulnerability by correcting how Helppane.exe authenticates the client.
Microsoft Windows: Microsoft Windows
Microsoft: Microsoft
Customer Action Require
GHSA
GHSA-gq83-88jr-4jw7: A DCOM object in Helppane
ghsa_unreviewed·2022-05-17
CVE-2017-0100 [HIGH] CWE-287 GHSA-gq83-88jr-4jw7: A DCOM object in Helppane
A DCOM object in Helppane.exe in Microsoft Windows 7 SP1; Windows Server 2008 R2; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows local users to gain privileges via a crafted application, aka "Windows HelpPane Elevation of Privilege Vulnerability."
Kernel
KEYS: Change the name of the dead type to ".dead" to prevent user access
kernel_security·2017-04-18·CVSS 5.5
CVE-2017-6951 [MEDIUM] KEYS: Change the name of the dead type to ".dead" to prevent user access
KEYS: Change the name of the dead type to ".dead" to prevent user access
This fixes CVE-2017-6951.
Userspace should not be able to do things with the "dead" key type as it
doesn't have some of the helper functions set upon it that the kernel
needs. Attempting to use it may cause the kernel to crash.
Fix this by changing the name of the type to ".dead" so that it's rejected
up front on userspace syscalls by key_get_type_from_user().
Though this doesn't seem to affect recent kernels, it does affect older
ones, certainly those prior to:
commit c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81
Author: David Howells
Date: Tue Sep 16 17:36:06 2014 +0100
KEYS: Remove key_type::match in favour of overriding default by match_preparse
which went in before 3.18-rc1.
Signed-off-by: David Howells
cc: sta
No detection rules found.
Trendmicro
March 2017 Patch Tuesday: 18 Security Bulletins
blogs_trendmicro·2017-03-15·CVSS 7.8
CVE-2017-0016 [HIGH] March 2017 Patch Tuesday: 18 Security Bulletins
Exploits & Vulnerabilities
# March 2017 Patch Tuesday: 18 Security Bulletins
Patch Tuesday for March is hefty, with essentially two months’ worth of updates after Microsoft delayed its February patch release. Notable among the critical bulletins is MS17-012, which resolves several vulnerabilities including CVE-2017-0016.
By: Trend Micro
2017/03/15
Read time: ( words)
Save to Folio
Patch Tuesday for March is a hefty one, with essentially two months’ worth of updates after Microsoft quietly delayed its February patch release. Notable among the critical bulletins is MS17-012, which resolves several vulnerabilities including CVE-2017-0016, a zero-day vulnerability involving Windows Server Message Block (SMB). This vulnerability potentially allows cyber criminals to render affected system
Trendmicro
March 2017 Patch Tuesday: 18 Security Bulletins
blogs_trendmicro·2017-03-15·CVSS 7.8
CVE-2017-0016 [HIGH] March 2017 Patch Tuesday: 18 Security Bulletins
Ausnutzung von Schwachstellen
## March 2017 Patch Tuesday: 18 Security Bulletins
Patch Tuesday for March is hefty, with essentially two months’ worth of updates after Microsoft delayed its February patch release. Notable among the critical bulletins is MS17-012, which resolves several vulnerabilities including CVE-2017-0016.
By: Trend Micro Mar 15, 2017 Read time: ( words)
Save to Folio
Patch Tuesday for March is a hefty one, with essentially two months’ worth of updates after Microsoft quietly delayed its February patch release. Notable among the critical bulletins is MS17-012 , which resolves several vulnerabilities including CVE-2017-0016, a zero-day vulnerability involving Windows Server Message Block (SMB) . This vulnerability potentially allows cyber criminals to render affected
Trendmicro
March 2017 Patch Tuesday: 18 Security Bulletins
blogs_trendmicro·2017-03-15·CVSS 7.8
CVE-2017-0016 [HIGH] March 2017 Patch Tuesday: 18 Security Bulletins
Sfruttamento vulnerabilità
## March 2017 Patch Tuesday: 18 Security Bulletins
Patch Tuesday for March is hefty, with essentially two months’ worth of updates after Microsoft delayed its February patch release. Notable among the critical bulletins is MS17-012, which resolves several vulnerabilities including CVE-2017-0016.
By: Trend Micro Mar 15, 2017 Read time: ( words)
Save to Folio
Patch Tuesday for March is a hefty one, with essentially two months’ worth of updates after Microsoft quietly delayed its February patch release. Notable among the critical bulletins is MS17-012 , which resolves several vulnerabilities including CVE-2017-0016, a zero-day vulnerability involving Windows Server Message Block (SMB) . This vulnerability potentially allows cyber criminals to render affected sy
Trendmicro
March 2017 Patch Tuesday: 18 Security Bulletins
blogs_trendmicro·2017-03-15·CVSS 7.8
CVE-2017-0016 [HIGH] March 2017 Patch Tuesday: 18 Security Bulletins
Exploits y vulnerabilidades
## March 2017 Patch Tuesday: 18 Security Bulletins
Patch Tuesday for March is hefty, with essentially two months’ worth of updates after Microsoft delayed its February patch release. Notable among the critical bulletins is MS17-012, which resolves several vulnerabilities including CVE-2017-0016.
By: Trend Micro Mar 15, 2017 Read time: ( words)
Save to Folio
Patch Tuesday for March is a hefty one, with essentially two months’ worth of updates after Microsoft quietly delayed its February patch release. Notable among the critical bulletins is MS17-012 , which resolves several vulnerabilities including CVE-2017-0016, a zero-day vulnerability involving Windows Server Message Block (SMB) . This vulnerability potentially allows cyber criminals to render affected s
Trendmicro
March 2017 Patch Tuesday: 18 Security Bulletins
blogs_trendmicro·2017-03-15·CVSS 7.8
CVE-2017-0016 [HIGH] March 2017 Patch Tuesday: 18 Security Bulletins
Exploits & Vulnerabilities
## March 2017 Patch Tuesday: 18 Security Bulletins
Patch Tuesday for March is hefty, with essentially two months’ worth of updates after Microsoft delayed its February patch release. Notable among the critical bulletins is MS17-012, which resolves several vulnerabilities including CVE-2017-0016.
By: Trend Micro 2017/03/15 Read time: ( words)
Save to Folio
Patch Tuesday for March is a hefty one, with essentially two months’ worth of updates after Microsoft quietly delayed its February patch release. Notable among the critical bulletins is MS17-012 , which resolves several vulnerabilities including CVE-2017-0016, a zero-day vulnerability involving Windows Server Message Block (SMB) . This vulnerability potentially allows cyber criminals to render affected syst
Trendmicro
March 2017 Patch Tuesday: 18 Security Bulletins
blogs_trendmicro·2017-03-15·CVSS 7.8
CVE-2017-0016 [HIGH] March 2017 Patch Tuesday: 18 Security Bulletins
Exploits & Vulnerabilities
## March 2017 Patch Tuesday: 18 Security Bulletins
Patch Tuesday for March is hefty, with essentially two months’ worth of updates after Microsoft delayed its February patch release. Notable among the critical bulletins is MS17-012, which resolves several vulnerabilities including CVE-2017-0016.
By: Trend Micro Mar 15, 2017 Read time: ( words)
Save to Folio
Patch Tuesday for March is a hefty one, with essentially two months’ worth of updates after Microsoft quietly delayed its February patch release. Notable among the critical bulletins is MS17-012 , which resolves several vulnerabilities including CVE-2017-0016, a zero-day vulnerability involving Windows Server Message Block (SMB) . This vulnerability potentially allows cyber criminals to render affected sy
Zscaler
Zscaler found Multiple Security Vulnerabilities | 03-14-2017
blogs_zscaler
Zscaler found Multiple Security Vulnerabilities | 03-14-2017
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http://blog.inspired-sec.com/archive/2017/03/17/COM-Moniker-Privesc.htmlhttp://www.securityfocus.com/bid/96700http://www.securitytracker.com/id/1038001https://bugs.chromium.org/p/project-zero/issues/detail?id=1021https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0100https://www.exploit-db.com/exploits/41607/http://blog.inspired-sec.com/archive/2017/03/17/COM-Moniker-Privesc.htmlhttp://www.securityfocus.com/bid/96700http://www.securitytracker.com/id/1038001https://bugs.chromium.org/p/project-zero/issues/detail?id=1021https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0100https://www.exploit-db.com/exploits/41607/
2017-03-17
Published