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

CVE-2020-0787 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-01-28

An elevation of privilege vulnerability exists in the Microsoft Windows Background Intelligent Transfer Service (BITS) due to improper handling of symbolic links. A local attacker can exploit this by following links to execute arbitrary code with SYSTEM-level privileges.

Technologies: Microsoft Windows. Vendors: Microsoft.

Quick answers

Is CVE-2020-0787 exploited in the wild?
Yes. CVE-2020-0787 is known to be exploited in the wild, first recorded on 28 January 2022. Treat it as urgent.
How severe is CVE-2020-0787?
Critical severity, with a CVSS score of 7.8, published 28 January 2022.
Which products and versions are affected?
Microsoft Windows 10 1507, 1607, 1709, 1803, 1809, 1903, 1909; Microsoft Windows 7 Service Pack 1; Microsoft Windows 8.1; Microsoft Windows RT 8.1; and 4 more.
Is there a fix for CVE-2020-0787?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2020-0787 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2020-0787?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Windows 10 1507, 1607, 1709, 1803, 1809, 1903, 1909
  • Microsoft Windows 7 Service Pack 1
  • Microsoft Windows 8.1
  • Microsoft Windows RT 8.1
  • Microsoft Windows Server 2008 Service Pack 2, R2 Service Pack 1
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016 1803, 1903, 1909
  • Microsoft Windows Server 2019

Timeline

  • 2020-03-10: disclosed: Initial publication date based on CVE year and typical Microsoft patch cycles (MSRC)
  • 2022-01-28: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-01-28: other: NVD publication date

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