CVE-2022-23610

CVSS V2 Medium 5.1 CVSS V3 High 8.1
Description
wire-server provides back end services for Wire, an open source messenger. In versions of wire-server prior to the 2022-01-27 release, it was possible to craft DSA Signatures to bypass SAML SSO and impersonate any Wire user with SAML credentials. In teams with SAML, but without SCIM, it was possible to create new accounts with fake SAML credentials. Under certain conditions that can be established by an attacker, an upstream library for parsing, rendering, signing, and validating SAML XML data was accepting public keys as trusted that were provided by the attacker in the signature. As a consequence, the attacker could login as any user in any Wire team with SAML SSO enabled. If SCIM was not enabled, the attacker could also create new users with new SAML NameIDs. In order to exploit this vulnerability, the attacker needs to know the SSO login code (distributed to all team members with SAML credentials and visible in the Team Management app), the SAML EntityID identifying the IdP (a URL not considered sensitive, but usually hard to guess, also visible in Team Management), and the SAML NameID of the user (usually an email address or a nick). The issue has been fixed in wire-server `2022-01-27` and is already deployed on all Wire managed services. On premise instances of wire-server need to be updated to `2022-01-27`, so that their backends are no longer affected. There are currently no known workarounds. More detailed information about how to reproduce the vulnerability and mitigation strategies is available in the GitHub Security Advisory.
Overview
  • CVE ID
  • CVE-2022-23610
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-03-16T18:15:11
  • Last Modified Date
  • 2022-03-28T16:28:54
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:wire:wire-server:*:*:*:*:*:*:*:* 1 OR 2.123.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:H/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • HIGH
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5.1
  • Severity
  • MEDIUM
  • Exploitability Score
  • 4.9
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.1
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.2
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://github.com/wireapp/wire-server/releases/tag/v2022-01-27 Release Notes Third Party Advisory
https://github.com/wireapp/wire-server/security/advisories/GHSA-9jg9-9g37-4424 Mitigation Third Party Advisory
History
Created Old Value New Value Data Type Notes
2022-04-04 00:41:30 Added to TrackCVE
2022-12-06 12:39:08 2022-03-16T18:15Z 2022-03-16T18:15:11 CVE Published Date updated
2022-12-06 12:39:08 2022-03-28T16:28:54 CVE Modified Date updated
2022-12-06 12:39:08 Analyzed Vulnerability Status updated