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CVE-2023-22726

8.0 · HIGH

act is a project which allows for local running of github actions.

Published Jan 20, 2023CWE-434EPSS 1.26%

Overview

CVE-2023-22726 is a high-severity vulnerability. It was published on January 20, 2023 and has a CVSS 3.1 base score of 8.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/nektos/act/blob/master/pkg/artifacts/server.go#L65GitHubgithub.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245GitHubgithub.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2GitHubgithub.com/nektos/act/commit/63ae215071f94569d910964bdee866d91d6e3a10GitHubgithub.com/nektos/act/issues/1553GitHubgithub.com/nektos/act/security/advisories/GHSA-pc99-qmg4-rcffGitHubsecuritylab.github.com/advisories/GHSL-2023-004_act/GitHubgithub.com/nektos/act/blob/master/pkg/artifacts/server.go#L65GitHubgithub.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#L245GitHubgithub.com/nektos/act/blob/v0.2.35/pkg/artifacts/server.go#LL103C2-L103C2

How CyberStrike helps

Frequently asked questions

What is CVE-2023-22726?

CVE-2023-22726 is a high-severity vulnerability. It was published on January 20, 2023 and has a CVSS 3.1 base score of 8.0 (HIGH).

How severe is CVE-2023-22726?

This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-22726?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-22726?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-22726 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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