Overview
- Description
- 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.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
Known exploits
Data from CISA
- Vulnerability name
- Zimbra Collaboration (ZCS) Arbitrary File Upload Vulnerability
- Exploit added on
- Oct 20, 2022
- Exploit action due
- Nov 10, 2022
- Required action
- Apply updates per vendor instructions.
Weaknesses
- nvd@nist.gov
- CWE-22
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:zimbra:collaboration:8.8.15:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1B17C1A7-0F0A-4E7C-8C0C-0BBB0BF66C82"
},
{
"criteria": "cpe:2.3:a:zimbra:collaboration:9.0.0:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "685D9652-2934-4C13-8B36-40582C79BFC1"
}
],
"operator": "OR"
}
]
}
]