Vulnerability Description
In SPIRE 0.8.1 through 0.8.4 and before versions 0.9.4, 0.10.2, 0.11.3 and 0.12.1, specially crafted requests to the FetchX509SVID RPC of SPIRE Server’s Legacy Node API can result in the possible issuance of an X.509 certificate with a URI SAN for a SPIFFE ID that the agent is not authorized to distribute. Proper controls are in place to require that the caller presents a valid agent certificate that is already authorized to issue at least one SPIFFE ID, and the requested SPIFFE ID belongs to the same trust domain, prior to being able to trigger this vulnerability. This issue has been fixed in SPIRE versions 0.8.5, 0.9.4, 0.10.2, 0.11.3 and 0.12.1.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cncf | Spire | >= 0.8.1, <= 0.8.4 |
Related Weaknesses (CWE)
References
- https://github.com/spiffe/spire/security/advisories/GHSA-h746-rm5q-8mgqThird Party Advisory
- https://github.com/spiffe/spire/security/advisories/GHSA-h746-rm5q-8mgqThird Party Advisory
FAQ
What is CVE-2021-27098?
CVE-2021-27098 is a vulnerability with a CVSS score of 8.1 (HIGH). In SPIRE 0.8.1 through 0.8.4 and before versions 0.9.4, 0.10.2, 0.11.3 and 0.12.1, specially crafted requests to the FetchX509SVID RPC of SPIRE Server’s Legacy Node API can result in the possible issu...
How severe is CVE-2021-27098?
CVE-2021-27098 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-27098?
Check the references section above for vendor advisories and patch information. Affected products include: Cncf Spire.