Home/CVE/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 receiv
CVE

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 receiv

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.)

HIGH · CVSS 7.5 EPSS 0.0012
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-347Improper Verification of Cryptographic Signature
▤

Affected Products & Versions

3
inverse sogo>= 2.0.6 and < 2.4.1
inverse sogo>= 3.0.0 and < 5.1.1
debian linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Jun 2021 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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 NotesThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00007.htmlMailing ListThird Party Advisory
https://www.debian.org/security/2021/dsa-5029Third Party Advisory
https://www.sogo.nu/news.htmlProduct
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