Intermesh Group-Office up to 3.5.4 File Reading compress.php readfile path traversal

Summaryinfo

A vulnerability was found in Intermesh Group-Office up to 3.5.4 and classified as problematic. Impacted is the function readfile of the file compress.php of the component File Reading. Executing a manipulation of the argument File can lead to path traversal. This vulnerability only affects products that are no longer supported by the maintainer. The identification of this vulnerability is CVE-2018-25438. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Intermesh Group-Office up to 3.5.4 and classified as problematic. This vulnerability affects the function readfile of the file compress.php of the component File Reading. The manipulation of the argument file with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product 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 product 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. As an impact it is known to affect confidentiality. CVE summarizes:

Intermesh Group-Office 3.3.0 before 3.5.5 contains an unauthenticated path traversal vulnerability in compress.php that allows remote attackers to read arbitrary files by manipulating the 'file' parameter. Attackers can send GET requests to /compress.php with '../' sequences in the 'file' parameter, which is appended to the cache path and passed to readfile(), to read files such as /etc/passwd. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-21.

The advisory is available at cxsecurity.com. This vulnerability was named CVE-2018-25438 since 10/14/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

By approaching the search of inurl:compress.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 3.5.5 eliminates this vulnerability.

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Productinfo

Vendor

• Intermesh

Name

• Group-Office

Version

• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3
• 3.5.4

Support

• end of life

CPE 2.3info

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CPE 2.2info

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