Red Hat KeyCloak up to 2.5.0 HMAC Verification information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Red Hat KeyCloak up to 2.5.0. Affected is an unknown function of the component HMAC Verification. Executing a manipulation can lead to information disclosure. This vulnerability appears as CVE-2017-2585. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Red Hat KeyCloak up to 2.5.0. It has been declared as problematic. This vulnerability affects an unknown functionality of the component HMAC Verification. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

Red Hat Keycloak before version 2.5.1 has an implementation of HMAC verification for JWS tokens that uses a method that runs in non-constant time, potentially leaving the application vulnerable to timing attacks.

The bug was discovered 04/04/2017. The weakness was presented 03/12/2018 as Bug 1412376 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2017-2585 since 12/01/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 117314 (RHEL 7 : Single Sign-On (RHSA-2017:0873)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l.

Upgrading to version 2.5.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (117314) and SecurityFocus (BID 97393†). See VDB-114382 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117314
Nessus Name: RHEL 7 : Single Sign-On (RHSA-2017:0873)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: KeyCloak 2.5.1

Timelineinfo

12/01/2016 🔍
04/04/2017 +124 days 🔍
04/04/2017 +0 days 🔍
04/05/2017 +1 days 🔍
03/12/2018 +341 days 🔍
03/12/2018 +0 days 🔍
03/13/2018 +1 days 🔍
09/06/2018 +177 days 🔍
02/21/2023 +1629 days 🔍

Sourcesinfo

Vendor: redhat.com

Advisory: Bug 1412376
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2585 (🔍)
GCVE (CVE): GCVE-0-2017-2585
GCVE (VulDB): GCVE-100-114388
SecurityFocus: 97393 - Keycloak CVE-2017-2585 Security Bypass Vulnerability
SecurityTracker: 1038180

See also: 🔍

Entryinfo

Created: 03/13/2018 07:44
Updated: 02/21/2023 10:47
Changes: 03/13/2018 07:44 (65), 01/12/2020 15:43 (9), 02/21/2023 10:47 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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