Description
Zimbra before 8.8.15 Patch 10 and 9.x before 9.0.0 Patch 3 allows remote code execution via an avatar file. There is potential abuse of /service/upload servlet in the webmail subsystem. A user can upload executable files (exe,sh,bat,jar) in the Contact section of the mailbox as an avatar image for a contact. A user will receive a "Corrupt File" error, but the file is still uploaded and stored locally in /opt/zimbra/data/tmp/upload/, leaving it open to possible remote execution.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Attack Vector
- network
- Complexity
- low
- Privileges
- low
- User Action
- required
- Scope
- unchanged
- Confidentiality
- high
- Integrity
- high
- Availability
- high
- Weaknesses
- CWE-434
Metadata
- Primary Vendor
- SYNACOR
- Published
- 6/3/2020
- Last Modified
- 11/21/2024
- 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_suite
AI-Powered Remediation
Generate remediation guidance or a C-suite brief for this vulnerability.