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Actively exploited · Published Aug 11, 2022 · Assigned by mitre

CVE-2022-37042

Critical 9.8 Exploited Ransomware

In plain English

A critical-severity path traversal in Zimbra Collaboration Suite (ZCS) from Synacor. Attackers are actively exploiting it in the wild (listed by CISA on August 11, 2022). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 92.1% (higher than 99.8% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, Nuclei, public proof-of-concept code. Apply updates per vendor instructions.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)92.1%top 0.2% of all CVEs
Exploited in the wildYesCISA KEV since Aug 11, 2022
Attack tooling3Metasploit, Nuclei, Public PoC

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Sep 1, 2022.

Official description

Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0 has mboximport functionality that receives a ZIP archive and extracts files from it. By bypassing authentication (i.e., not having an authtoken), an attacker can upload arbitrary files to the system, leading to directory traversal and remote code execution. NOTE: this issue exists because of an incomplete fix for CVE-2022-27925.

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References