VulnerabilityModified
CVE-2021-33054
SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receives.
HIGH 7.5EPSS 1.00%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
SOGo 2.x before 2.4.1 and 3.x through 5.x before 5.1.1 does not validate the signatures of any SAML assertions it receives. Any actor with network access to the deployment could impersonate users when SAML is the authentication method. (Only versions after 2.0.5a are affected.)
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.00% probability · 61th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- inverse/sogo · debian/debian linux
- Source
- cve@mitre.org
References
- https://blogs.akamai.com/2021/06/sogo-and-packetfence-impacted-by-saml-implementation-vulnerabilities.htmlThird Party Advisory
- https://github.com/inverse-inc/sogo/blob/master/CHANGELOG.mdRelease Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00007.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-5029Third Party Advisory
- https://www.sogo.nu/news.htmlProduct
- https://blogs.akamai.com/2021/06/sogo-and-packetfence-impacted-by-saml-implementation-vulnerabilities.htmlThird Party Advisory
- https://github.com/inverse-inc/sogo/blob/master/CHANGELOG.mdRelease Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00007.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-5029Third Party Advisory
- https://www.sogo.nu/news.htmlProduct
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.