An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis 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, amavis automatically prefers it over cpio.
via cve_org
| Version | Type | Source | Base | Exp | Imp |
|---|---|---|---|---|---|
| 3.1 | Primary | cve.org | 9.8 | — | — |
| 3.1 | Primary | cve.org | 9.8 | — | — |
| 3.1 | Primary | cve.org | 9.8 | — | — |
| 3.1 | Primary | NVD | 9.8 | 3.9 | 5.9 |
| 3.1 | Secondary | NVD | 9.8 | 3.9 | 5.9 |
| 3.1 | Secondary | ENISA EUVD | 9.8 | — | — |