Keycloak up to 20.0.2 Access Token access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

A vulnerability has been found in Keycloak up to 20.0.2 and classified as critical. Affected by this vulnerability is an unknown function of the component Access Token Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in Keycloak, where it did not properly check client tokens for possible revocation in its client credential flow. This flaw allows an attacker to access or modify potentially sensitive information.

The weakness was released 01/13/2023. The advisory is shared at access.redhat.com. This vulnerability is known as CVE-2023-0091 since 01/05/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 20.0.3 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-207543, VDB-212439, VDB-215300 and VDB-228903.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Keycloak 20.0.3

Timelineinfo

01/05/2023 🔍
01/13/2023 +8 days 🔍
01/13/2023 +0 days 🔍
02/05/2023 +23 days 🔍

Sourcesinfo

Advisory: access.redhat.com
Status: Confirmed

CVE: CVE-2023-0091 (🔍)
See also: 🔍

Entryinfo

Created: 01/13/2023 10:33 AM
Updated: 02/05/2023 07:37 PM
Changes: 01/13/2023 10:33 AM (39), 02/05/2023 07:37 PM (11)
Complete: 🔍
Cache ID: 35:545:40

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