PNETLab 4.2.10 HTTP Request path traversal

Summaryinfo

A vulnerability identified as critical has been detected in PNETLab 4.2.10. The impacted element is an unknown function of the component HTTP Request Handler. This manipulation causes path traversal. This vulnerability appears as CVE-2025-40629. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in PNETLab 4.2.10. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component HTTP Request Handler. The manipulation 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. The summary by CVE is:

PNETLab 4.2.10 does not properly sanitize user inputs in its file access mechanisms. This allows attackers to perform directory traversal by manipulating file paths in HTTP requests. Specifically, the application is vulnerable to requests that access sensitive files outside the intended directory.

The weakness was presented by Reza Rashidi. It is possible to read the advisory at incibe.es. This vulnerability is known as CVE-2025-40629 since 04/16/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/16/2025). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• PNETLab

Version

• 4.2.10

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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