CWE-625
Permissive Regular Expression
The product uses a regular expression that does not sufficiently restrict the set of allowed values.
CVE-2023-6544 (GCVE-0-2023-6544)
Vulnerability from cvelistv5
Published
2024-04-25 15:58
Modified
2025-08-07 11:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-625 - Permissive Regular Expression
Summary
A flaw was found in the Keycloak package. This issue occurs due to a permissive regular expression hardcoded for filtering which allows hosts to register a dynamic client. A malicious user with enough information about the environment could jeopardize an environment with this specific Dynamic Client Registration and TrustedDomain configuration previously unauthorized.
References
| ▼ | URL | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:1860 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1861 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1862 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1864 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1866 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1867 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2024:1868 | vendor-advisory, x_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2023-6544 | vdb-entry, x_refsource_REDHAT | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2253116 | issue-tracking, x_refsource_REDHAT |
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▼ |
Version: 22.0.0 ≤ Version: 23.0.0 ≤ |
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|
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Mitigation
Phase: Implementation
Description:
- When applicable, ensure that the regular expression marks beginning and ending string patterns, such as "/^string$/" for Perl.
No CAPEC attack patterns related to this CWE.