Microsoft Windows Server Buffer Overflow Vulnerability (CVE-2017-7269)
Severity: critical · Patch status: patched · Since 2021-11-03 · CVE-2017-7269
Microsoft Windows Server 2003 R2 contains a buffer overflow vulnerability in Internet Information Services (IIS) 6.0 which allows remote attackers to execute code via a long header beginning with "If: <http://" in a PROPFIND request. CISA added CVE-2017-7269 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by May 3, 2022 (BOD 22-01); treat that as the outer limit.
Sources
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