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.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- network
- Complexity
- low
- Privileges
- none
- User Action
- none
- Scope
- unchanged
- Confidentiality
- high
- Integrity
- high
- Availability
- high
- Weaknesses
- CWE-22CWE-22
Metadata
- Primary Vendor
- SYNACOR
- Published
- 9/26/2022
- Last Modified
- 11/3/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
synacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suitesynacor : zimbra_collaboration_suite
AI-Powered Remediation
Generate remediation guidance or a C-suite brief for this vulnerability.