Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-5cc8-pgp5-7mpm
Advisory ID github_osv/GHSA-5cc8-pgp5-7mpm
Aliases CVE-2023-1664
Summary Keycloak Untrusted Certificate Validation vulnerability A flaw was found in keycloak-core. This flaw considers the scenario when using X509 Client Certificate Authenticatior with the option "Revalidate Client Certificate". A user may be able to choose, if directly connect to keycloak (not passing via reverse proxy) a specific certificate. If there's a configuration error in KC_SPI_TRUSTSTORE_FILE_FILE the authenticator allows even with the "Cannot validate client certificate trust: Truststore not available" message as there's no certificate to trust against.
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-295 Improper Certificate Validation
System Score Found at
cvssv3.1 6.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/06/GHSA-5cc8-pgp5-7mpm/GHSA-5cc8-pgp5-7mpm.json
generic_textual MODERATE
Reference id Reference type URL
https://bugzilla.redhat.com/show_bug.cgi?id=2182196&comment#0
https://github.com/keycloak/keycloak
https://github.com/keycloak/keycloak/security/advisories/GHSA-5cc8-pgp5-7mpm
CVE-2023-1664 https://access.redhat.com/security/cve/CVE-2023-1664
CVE-2023-1664 https://nvd.nist.gov/vuln/detail/CVE-2023-1664
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/06/GHSA-5cc8-pgp5-7mpm/GHSA-5cc8-pgp5-7mpm.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-01-15T21:33:57Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2023/1xxx/CVE-2023-1664.json

Source Advisory: vulnrichment/CVE-2023-1664

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]