Microsoft Windows Background Intelligent Transfer Service (BITS) Improper Privilege Management Vulnerability (CVE-2020-0787)
Severity: high · Patch status: patched · Since 2022-01-28 · CVE-2020-0787
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. CISA added CVE-2020-0787 to its Known Exploited Vulnerabilities catalog on Jan 28, 2022, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Jul 28, 2022 (BOD 22-01); treat that as the outer limit.
Sources
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