CVE-2022-41352
CriticalActively exploited (CISA KEV)Known to be used in ransomware campaigns
Description
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole (extraction to /opt/zimbra/jetty/webapps/zimbra/public) that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also, pax is in the prerequisites of Zimbra on Ubuntu; however, pax is no longer part of a default Red Hat installation after RHEL 6 (or CentOS 6). Once pax is installed, amavis automatically prefers it over cpio.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Synacor Zimbra Collaboration Suite (ZCS)
PublishedSep 26, 2022
First seenSep 26, 2022
Added to KEVOct 20, 2022
Weakness typeCWE-22Path traversal
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Nov 10, 2022Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| synacor zimbra_collaboration_suite | 9.0.0, 8.8.15 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.