Vulnerability identifier: #VU66173

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-27925

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Zimbra Collaboration
Web applications / Webmail solutions

Vendor: Synacor Inc.

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in file name inside a zip archive in mboximport (MailboxImportServlet). A remote user can upload a specially crafted archive and write files to an arbitrary location on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Zimbra Collaboration: 8.8.15 - 9.0.0 Patch 23

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External links
http://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24
http://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P31#Security_Fixes

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.