CVE-2022-27925 in Zimbra and Synacor Products
Published on April 21, 2022

Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 has mboximport functionality that receives a ZIP archive and extracts files from it. An authenticated user with administrator rights has the ability to upload arbitrary files to the system, leading to directory traversal.

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Known Exploited Vulnerability

This Zimbra Collaboration (ZCS) Arbitrary File Upload Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Zimbra Collaboration (ZCS) contains flaw in the mboximport functionality, allowing an authenticated attacker to upload arbitrary files to perform remote code execution. This vulnerability was chained with CVE-2022-37042 which allows for unauthenticated remote code execution.

The following remediation steps are recommended / required by September 1, 2022: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2022-27925 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 1.2 out of four. The potential impact of an exploit of this vulnerability is considered to be very high.

What is a Directory traversal Vulnerability?

The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

CVE-2022-27925 has been classified to as a Directory traversal vulnerability or weakness.

Products Associated with CVE-2022-27925

You can be notified by stack.watch whenever vulnerabilities like CVE-2022-27925 are published in these products:

Zimbra Collaboration

Synacor Zimbra Collaboration Suite

What versions are vulnerable to CVE-2022-27925?