Lektor up to 3.3.11 path traversal

Summaryinfo

A vulnerability described as critical has been identified in Lektor up to 3.3.11. Affected by this issue is some unknown functionality. Such manipulation leads to path traversal. This vulnerability is documented as CVE-2024-28335. The attack needs to be performed locally. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Lektor up to 3.3.11 and classified as critical. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Lektor before 3.3.11 does not sanitize DB path traversal. Thus, shell commands might be executed via a file that is added to the templates directory, if the victim's web browser accesses an untrusted website that uses JavaScript to send requests to localhost port 5000, and the web browser is running on the same machine as the "lektor server" command.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2024-28335 since 03/08/2024. The exploitation is known to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading to version 3.3.11 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Lektor

Version

• 3.3.0
• 3.3.1
• 3.3.2
• 3.3.3
• 3.3.4
• 3.3.5
• 3.3.6
• 3.3.7
• 3.3.8
• 3.3.9
• 3.3.10
• 3.3.11

Website

• Product: https://github.com/lektor/lektor/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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