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CVE-2020-1350: Microsoft Windows DNS Server Remote Code Execution Vulnerability

criticalknown exploitedpublic exploitCVE-2020-1350
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Windows DNS Servers fail to properly handle requests, allowing an attacker to perform remote code execution in the context of the Local System Account. The vulnerability is also known under the moniker of SIGRed.

CSIRTS triage

vendor: Microsoftproduct: Windows DNS ServerRemote code execution
What
The DNS Server fails to handle requests properly, allowing remote code execution.
Who is affected
Users of Microsoft Windows DNS Servers.
Urgency
Remediation is critical due to active exploitation and high severity.
Action
Apply the latest security updates for Windows DNS Server.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-1350

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-1350coverage & exploitation statusNVD · CVE.org

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