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CVE-2021-33054

Good to know:

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Date: June 4, 2021

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.)

Language: Objective-C

Severity Score

Related Resources (9)

https://www.debian.org/security/2021/dsa-5029
https://blogs.akamai.com/2021/06/sogo-and-packetfence-impacted-by-saml-implementation-vulnerabilities.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-33054
https://github.com/inverse-inc/sogo/blob/master/CHANGELOG.md
https://nvd.nist.gov/vuln/detail/CVE-2021-33054
https://www.sogo.nu/news.html
https://security-tracker.debian.org/tracker/CVE-2021-33054
https://lists.debian.org/debian-lts-announce/2021/07/msg00007.html
https://www.mend.io/vulnerability-database/CVE-2021-33054

Severity Score

Weakness Type (CWE)

Improper Verification of Cryptographic Signature

CWE-347

Top Fix

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Upgrade to version SOGo-2.4.1, SOGo-5.1.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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