Cross-site scripting in Keycloak - CVE-2017-12158
Published: October 26, 2017 / Updated: December 22, 2020
Vulnerability identifier: #VU38015
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2017-12158
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via a malicious server. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Affected software
Keycloak
rh-sso7-keycloak (Red Hat package)
rh-sso7-keycloak (Red Hat package)
How to mitigate CVE-2017-12158
Install update from vendor's website.
rh-sso7-keycloak (Red Hat package) - addressed in versions 2.5.14-1.Final_redhat_1.1.jbcs.el6, 2.5.14-1.Final_redhat_1.1.jbcs.el7