Unrated severityNVD Advisory· Published Jun 3, 2020· Updated Aug 4, 2024
CVE-2020-12846
CVE-2020-12846
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.
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Affected products
2- Zimbra/Zimbradescription
Patches
Vulnerability mechanics
References
3- wiki.zimbra.com/wiki/Security_Centermitrex_refsource_MISC
- wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P3mitrex_refsource_CONFIRM
- wiki.zimbra.com/wiki/Zimbra_Security_Advisoriesmitrex_refsource_MISC
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