Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability (CVE-2022-27925)
Severity: high · Patch status: patched · Since 2022-08-11 · CVE-2022-27925
Synacor Zimbra Collaboration Suite (ZCS) contains flaw in the mboximport functionality, allowing an authenticated attacker to upload arbitrary files to perform remote code execution. This vulnerability was chained with CVE-2022-37042 which allows for unauthenticated remote code execution. CISA added CVE-2022-27925 to its Known Exploited Vulnerabilities catalog on Aug 11, 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 Sep 1, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch