Vulnerability Description
Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, the client side session module uses the application startup time as the signing key by default. This means that if an attacker can determine this time, and if encryption is not also used (which is recommended, but is not on by default), the session data could be tampered with by someone with the ability to write cookies. The default configuration is unsuitable for production use as an application restart renders all sessions invalid and is not multi-host compatible, but its use is not actively prevented. As of Ratpack 1.9.0, the default value is a securely randomly generated value, generated at application startup time. As a workaround, supply an alternative signing key, as per the documentation's recommendation.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ratpack Project | Ratpack | < 1.9.0 |
Related Weaknesses (CWE)
References
- https://github.com/ratpack/ratpack/blob/29434f7ac6fd4b36a4495429b70f4c8163100332Third Party Advisory
- https://github.com/ratpack/ratpack/security/advisories/GHSA-2cc5-23r7-vc4vThird Party Advisory
- https://github.com/ratpack/ratpack/blob/29434f7ac6fd4b36a4495429b70f4c8163100332Third Party Advisory
- https://github.com/ratpack/ratpack/security/advisories/GHSA-2cc5-23r7-vc4vThird Party Advisory
FAQ
What is CVE-2021-29480?
CVE-2021-29480 is a vulnerability with a CVSS score of 4.4 (MEDIUM). Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, the client side session module uses the application startup time as the signing key by default. This means that if an at...
How severe is CVE-2021-29480?
CVE-2021-29480 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29480?
Check the references section above for vendor advisories and patch information. Affected products include: Ratpack Project Ratpack.