CVEvulnerability

CVE-2020-12846

8.0 HIGH Published 2020-06-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-06-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.0 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.0 MEDIUM — AV:N/AC:M/Au:S/C:P/I:P/A:P
Weaknesses
CWE-434

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.

Affected configurations

• synacor zimbra collaboration suite (< 8.8.15) • synacor zimbra collaboration suite 8.8.15 • synacor zimbra collaboration suite 9.0.0

Related

Weakness · CWE (1)

  • CWE-434 Unrestricted Upload of File with Dangerous Type weakness

References