#VU14575 Authentication bypass in Grafana - CVE-2018-558213,CVE-2018-15727
Published: August 30, 2018 / Updated: April 22, 2020
Vulnerability identifier: #VU14575
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2018-558213,CVE-2018-15727
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
Grafana
Grafana
Software vendor:
Grafana Labs
Grafana Labs
Description
The vulnerability allows a remote attacker to bypass authentication.
The vulnerability exists due to the web application generates predictable cookie value for the "remember me" cookie that is based on the username of an LDAP or OAuth user. A remote non-authenticated attacker can bypass authentication process and gain unrestricted access to the web application.
Successful exploitation of the vulnerability requires knowledge of the username.
Remediation
Update to version 4.6.4 or 5.2.3.