SB2017031002 - Multiple vulnerabilities in Red Hat Keycloak

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Main Vulnerability Database SB2017031002

SB2017031002 - Multiple vulnerabilities in Red Hat Keycloak

Published: March 10, 2017

Security Bulletin ID SB2017031002
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Information disclosure (CVE-ID: CVE-2017-2582)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to obtain potentially sensitive information.

The vulnerability exists in the StaxParserUtil class of the Picketlink feature due to improper parsing of Security Assertion Markup Language (SAML) messages. A remote attacker can send a specially crafted SAML request that submits malicious input and access sensitive information, such as values of system properties.


2) Infinite loop (CVE-ID: CVE-2017-2646)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability existsdue to improper processing of logout requests that contain an extension element. A remote attacker can send a specially crafted logout request that submits malicious input, make the SAMLSloRequestParser.parse() method end in an infinite loop and cause the service to crash.


Remediation

Install update from vendor's website.

References