Vulnerability Description
github.com/sylabs/scs-library-client is the Go client for the Singularity Container Services (SCS) Container Library Service. When the scs-library-client is used to pull a container image, with authentication, the HTTP Authorization header sent by the client to the library service may be incorrectly leaked to an S3 backing storage provider. This occurs in a specific flow, where the library service redirects the client to a backing S3 storage server, to perform a multi-part concurrent download. Depending on site configuration, the S3 service may be provided by a third party. An attacker with access to the S3 service may be able to extract user credentials, allowing them to impersonate the user. The vulnerable multi-part concurrent download flow, with redirect to S3, is only used when communicating with a Singularity Enterprise 1.x installation, or third party server implementing this flow. Interaction with Singularity Enterprise 2.x, and Singularity Container Services (cloud.sylabs.io), does not trigger the vulnerable flow. We encourage all users to update. Users who interact with a Singularity Enterprise 1.x installation, using a 3rd party S3 storage service, are advised to revoke and recreate their authentication tokens within Singularity Enterprise. There is no workaround available at this time.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sylabs | Singularity Container Services Library | 1.3.2 |
Related Weaknesses (CWE)
References
- https://github.com/sylabs/scs-library-client/commit/68ac4cab5cda0afd8758ff5b5e2ePatchThird Party Advisory
- https://github.com/sylabs/scs-library-client/commit/b5db2aacba6bf1231f42dd475cc3PatchThird Party Advisory
- https://github.com/sylabs/scs-library-client/commit/eebd7caaab310b1fa803e55b8fc1PatchThird Party Advisory
- https://github.com/sylabs/scs-library-client/security/advisories/GHSA-7p8m-22h4-Third Party Advisory
- https://github.com/sylabs/scs-library-client/commit/68ac4cab5cda0afd8758ff5b5e2ePatchThird Party Advisory
- https://github.com/sylabs/scs-library-client/commit/b5db2aacba6bf1231f42dd475cc3PatchThird Party Advisory
- https://github.com/sylabs/scs-library-client/commit/eebd7caaab310b1fa803e55b8fc1PatchThird Party Advisory
- https://github.com/sylabs/scs-library-client/security/advisories/GHSA-7p8m-22h4-Third Party Advisory
FAQ
What is CVE-2022-23538?
CVE-2022-23538 is a vulnerability with a CVSS score of 5.2 (MEDIUM). github.com/sylabs/scs-library-client is the Go client for the Singularity Container Services (SCS) Container Library Service. When the scs-library-client is used to pull a container image, with authen...
How severe is CVE-2022-23538?
CVE-2022-23538 has been rated MEDIUM with a CVSS base score of 5.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-23538?
Check the references section above for vendor advisories and patch information. Affected products include: Sylabs Singularity Container Services Library.