Critical severity · published Sep 26, 2022
CVE-2022-41352
Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability
RansomwareIn wildKEV
9.8
CVSS
95.5%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)95.5% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Oct 20, 2022
Federal remediation dueNov 10, 2022
Ransomware campaign useKnown
Affected products
Which versions
ZC
Zimbra Collaboration Suite · Synacor
9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; 9.0.0; +34 more · source: NVD
ZC
Zimbra Collaboration Suite (ZCS) · Synacor
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-41352
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-41352
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
wiki.zimbra.com
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
wiki.zimbra.com
https://wiki.zimbra.com/wiki/Security_Center
forums.zimbra.org
https://forums.zimbra.org/viewtopic.php?t=71153&p=306532
packetstormsecurity.com
http://packetstormsecurity.com/files/169458/Zimbra-Collaboration-Suite-TAR-Path-Traversal.html
www.secpod.com
https://www.secpod.com/blog/unpatched-rce-bug-in-zimbra-collaboration-suite-exploited-in-wild/
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