Medium severity · published Dec 18, 2023
CVE-2023-6927
A flaw was found in Keycloak
6.1
CVSS
1.1%
EPSS
No
On KEV
Description
A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode "form_post.jwt" which could be used to bypass the security patch implemented to address CVE-2023-6134.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Keycloak · Redhat
All versions, or not specified · source: NVD
SS
Single Sign-on · Redhat
7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6927
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6927
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0094
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0095
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0096
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0097
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0098
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0100
More from Keycloak
9.8
CVE-2022-1245
A privilege escalation flaw was found in the token exchange feature of keycloak
9.8
CVE-2019-14910
A vulnerability was found in keycloak 7.x, when keycloak is configured with LDAP user federation and StartTLS is used instead of SSL/TLS from the LDAP server (ldaps), in this case…
9.6
CVE-2021-20195
A flaw was found in keycloak in versions before 13.0.0
9.1
CVE-2022-3782
keycloak: path traversal via double URL encoding
9.1
CVE-2019-14837
A flaw was found in keycloack before version 8.0.0