An issue was discovered in Zimbra Collaboration (ZCS) 8.8...
Critical severity
Unreviewed
Published
Sep 27, 2022
to the GitHub Advisory Database
•
Updated Feb 3, 2025
Description
Published by the National Vulnerability Database
Sep 26, 2022
Published to the GitHub Advisory Database
Sep 27, 2022
Last updated
Feb 3, 2025
An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavisd 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, amavisd automatically prefers it over cpio.
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