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CVE-2020-0787: Microsoft Windows Background Intelligent Transfer Service (BITS) Improper Privilege Management Vulnerability

criticalknown exploitedpublic exploitCVE-2020-0787
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 BITS is vulnerable to to a privilege elevation vulnerability if it improperly handles symbolic links. An actor can exploit this vulnerability to execute arbitrary code with system-level privileges.

CSIRTS triage

vendor: Microsoftproduct: Windows Background Intelligent Transfer Service (BITS)Privilege escalation
What
Microsoft Windows BITS is vulnerable to a privilege elevation vulnerability if it improperly handles symbolic links.
Who is affected
Deployments of Microsoft Windows BITS.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Install the recommended patches from Microsoft.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-01-28
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-0787

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-2020-0787coverage & exploitation statusNVD · CVE.org

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