Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-7fpj-9hr8-28vh
Advisory ID github_osv/GHSA-7fpj-9hr8-28vh
Aliases CVE-2023-0657
Summary Keycloak vulnerable to impersonation via logout token exchange Keycloak was found to not properly enforce token types when validating signatures locally. An authenticated attacker could use this flaw to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.
Status Published
Exploitability 0.5
Weighted Severity 3.1
Risk 1.6
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (5)
CWE-287 Improper Authentication
CWE-290 Authentication Bypass by Spoofing
CWE-347 Improper Verification of Cryptographic Signature
CWE-284 Improper Access Control
CWE-273 Improper Check for Dropped Privileges
System Score Found at
cvssv3.1 3.4 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/04/GHSA-7fpj-9hr8-28vh/GHSA-7fpj-9hr8-28vh.json
generic_textual LOW
Reference id Reference type URL
https://bugzilla.redhat.com/show_bug.cgi?id=2166728
https://github.com/keycloak/keycloak
CVE-2023-0657 https://access.redhat.com/security/cve/CVE-2023-0657
CVE-2023-0657 https://nvd.nist.gov/vuln/detail/CVE-2023-0657
GHSA-7fpj-9hr8-28vh https://github.com/keycloak/keycloak/security/advisories/GHSA-7fpj-9hr8-28vh
RHSA-2024:1867 https://access.redhat.com/errata/RHSA-2024:1867
RHSA-2024:1868 https://access.redhat.com/errata/RHSA-2024:1868
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/04/GHSA-7fpj-9hr8-28vh/GHSA-7fpj-9hr8-28vh.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:N/T:P/P:M/B:A/M:M/D:T/2024-11-17T16:18:32Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2023/0xxx/CVE-2023-0657.json

Source Advisory: vulnrichment/CVE-2023-0657

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]