act prior 0.2.40 GitHub Action /upload unrestricted upload

Summaryinfo

A vulnerability, which was classified as problematic, has been found in act. Affected by this vulnerability is an unknown functionality of the file /upload of the component GitHub Action Handler. Performing a manipulation results in unrestricted upload. This vulnerability is reported as CVE-2023-22726. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in act. This affects an unknown functionality of the file /upload of the component GitHub Action Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download and overwrite arbitrary files on the host from a Github Action. This issue may lead to privilege escalation. The /upload endpoint is vulnerable to path traversal as filepath is user controlled, and ultimately flows into os.Mkdir and os.Open. The /artifact endpoint is vulnerable to path traversal as the path is variable is user controlled, and the specified file is ultimately returned by the server. This has been addressed in version 0.2.40. Users are advised to upgrade. Users unable to upgrade may, during implementation of Open and OpenAtEnd for FS, ensure to use ValidPath() to check against path traversal or clean the user-provided paths manually.

The weakness was disclosed 01/21/2023 as 1553. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2023-22726 since 01/06/2023. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

Upgrading to version 0.2.40 eliminates this vulnerability. Applying the patch 63ae215071f94569d910964bdee866d91d6e3a10 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.

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Name

• act

License

• open-source

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• 🔍

CPE 2.2info

• 🔍

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