CVE Catalog

CVE-2021-29429

MediumCVSS 4.0
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.48%

40th percentile - higher than 40% of all known CVEs

Summary

In Gradle before version 7.0, files created with open permissions in the system temporary directory can allow an attacker to access information downloaded by Gradle. Some builds could be vulnerable to a local information disclosure, as remote files accessed through TextResourceFactory are downloaded into the system temporary directory first. If you do not use the TextResourceFactory API, you are not vulnerable.

Risk Assessment

Sensitive information contained in downloaded files can be exposed to other local users on the same system. The risk mainly affects multi-user environments where the temporary directory is shared.

Recommendation

Upgrade Gradle to version 7.0 or later, which moves system temporary directory usage to the Gradle User Home directory with restricted permissions. Alternatively, set a more restrictive umask or change the Java temporary directory by setting the java.io.tmpdir system property.

Other vulnerabilities in Gradle

See all
Original NVD description (English source)

In Gradle before version 7.0, files created with open permissions in the system temporary directory can allow an attacker to access information downloaded by Gradle. Some builds could be vulnerable to a local information disclosure. Remote files accessed through TextResourceFactory are downloaded into the system temporary directory first. Sensitive information contained in these files can be exposed to other local users on the same system. If you do not use the `TextResourceFactory` API, you are not vulnerable. As of Gradle 7.0, uses of the system temporary directory have been moved to the Gradle User Home directory. By default, this directory is restricted to the user running the build. As a workaround, set a more restrictive umask that removes read access to other users. When files are created in the system temporary directory, they will not be accessible to other users. If you are unable to change your system's umask, you can move the Java temporary directory by setting the System Property `java.io.tmpdir`. The new path needs to limit permissions to the build user only.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS