K7 ANTIVIRUS VULNERABILITY ALLOWS ATTACKERS TO GAIN SYSTEM-LEVEL PRIVILEGES

Summary from the TLDR InfoSec newsletter

A security researcher discovered a privilege escalation vulnerability in the K7 Ultimate Security antivirus while investigating an unrelated DoS vulnerability. The vulnerability exploited named pipes with overly permissive access control lists, allowing a non-admin user to execute arbitrary code as SYSTEM during fake updates. K7 worked with the researcher to issue three patches to provide interim fixes for the vulnerability pending full ACL enforcement in a future release.