Exploitation of ‘Copy Fail’ Linux Vulnerability Begins
Summary
Exploitation of the 'Copy Fail' Linux vulnerability has begun, with CISA adding it to their Known Exploited Vulnerabilities (KEV) catalog. Microsoft has observed limited exploitation, primarily linked to proof-of-concept testing.
IFF Assessment
The exploitation of a Linux vulnerability signifies an increased risk for systems running affected software, posing a threat to defenders.
Severity
The 'Copy Fail' vulnerability (CVE-2023-6378) in Linux's glibc allows for local privilege escalation. Its potential for local privilege escalation and the observed exploitation attempts suggest a moderate to high severity.
Defender Context
Defenders should prioritize patching systems affected by the 'Copy Fail' Linux vulnerability, especially since it has been added to CISA's KEV catalog and is already being exploited. Monitoring for indicators of compromise related to this vulnerability is crucial.