Name: CVE-2020-12846: Unrestricted Upload of File with Dangerous Type
Creator: Rapid7
Published: 2020-06-03T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2020-12846, CWE-434, CVSS 8, EPSS 0.12026

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 Details

CVSS 3.1 Base Score: 8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Zimbra Collaboration	—	Upgrade Zimbra Collaboration to the latest version	Jan 10, 2025	Jun 3, 2020

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CVSS Details

Covered by Rapid7

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