CVE-2023-40034 Repositoty takeover in woodpecker-ci

What is CVE-2023-40034?

CVE-2023-40034 is a high-severity vulnerability in woodpecker-ci woodpecker, published on 16 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Woodpecker is a community fork of the Drone CI system. In affected versions an attacker can post malformed webhook data witch lead to an update of the repository data that can e.g. allow the takeover of an repo. This is only critical if the CI is configured for public usage and connected to a forge witch is also in public usage. This issue has been addressed in version 1.0.2. Users are advised to upgrade. Users unable to upgrade should secure the CI system by making it inaccessible to untrusted entities, for example, by placing it behind a firewall.

Weakness: CWE-20

Which versions are affected by CVE-2023-40034?

3 open source packages ship an affected version, including github.com/woodpecker-ci/woodpecker. It affects 1 product.

Products include Woodpecker-Ci Woodpecker.

How do I fix CVE-2023-40034?

Upgrade github.com/woodpecker-ci/woodpecker to 1.0.2 or later.

Is CVE-2023-40034 being exploited?

There is no known exploitation of CVE-2023-40034 in the wild and no public exploit code.

Other vulnerabilities in woodpecker-ci woodpecker

• CVE-2024-41121 Custom workspace allow to overwrite plugin entrypoint executable in Woodpecker High 8.8
• CVE-2024-41122 Custom environment variables allow to alter execution flow of plugins in Woodpecker High 7.5
• CVE-2022-29947 Woodpecker allows cross-site scripting (XSS) via build logs Medium 6.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-4gcf-5m39-98mc, GO-2023-2014.