Gogs up to 0.11.66 File Upload pkg/tool/path.go path traversal

Summaryinfo

A vulnerability was found in Gogs. It has been classified as critical. Impacted is an unknown function of the file pkg/tool/path.go of the component File Upload. Performing a manipulation results in path traversal. This vulnerability was named CVE-2018-20303. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Gogs. This affects an unknown code block of the file pkg/tool/path.go of the component File Upload. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In pkg/tool/path.go in Gogs before 0.11.82.1218, a directory traversal in the file-upload functionality can allow an attacker to create a file under data/sessions on the server, a similar issue to CVE-2018-18925.

The bug was discovered 12/18/2018. The weakness was presented 12/20/2018 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2018-20303 since 12/19/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 0.11.82.1218 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-3398). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• Gogs

Version

• 0.3.1-9
• 0.4.1
• 0.4.2
• 0.5.0
• 0.5.2
• 0.5.5
• 0.11.53
• 0.11.66

License

• open-source

Website

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

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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