Nexus Repository 3 - Insufficiently Protected Credentials in YUM Repository Signing Key

Summary

Sonatype Nexus Repository 3 returns the private signing key of a YUM proxy or group repository to an account that holds only the read privilege for administering that repository. The account does not need the privilege to edit the repository. A party that holds the key can sign repository metadata as that repository.

Remediation

1. Inventory every Sonatype Nexus Repository 3 deployment, including staging.
2. Upgrade Sonatype Nexus Repository 3 to 3.98.0.
3. Confirm the running version after the upgrade.

References

• Patchhttps://help.sonatype.com/en/sonatype-nexus-repository-3-98-0-release-notes.html
• Advisoryhttps://support.sonatype.com/hc/en-us/articles/56612283547539/