SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2017-0213

Microsoft Windows Privilege Escalation Vulnerability

KEVHIGH 7.3EPSS 84.1%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 18 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Windows COM Aggregate Marshaler in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an elevation privilege vulnerability when an attacker runs a specially crafted application, aka "Windows COM Elevation of Privilege Vulnerability". This CVE ID is unique from CVE-2017-0214.

CVSS 3.1
7.3 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS
84.14% probability · 100th percentile
CISA KEV
Listed 28 March 2022 · due 18 April 2022 · used in ransomware campaigns
Affected
microsoft/windows 10 1507 · microsoft/windows 10 1511 · microsoft/windows 10 1607 · microsoft/windows 10 1703 · microsoft/windows 7 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016
Source
secure@microsoft.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-0213

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.