Authentication bypass in FreeRADIUS - CVE-2017-9148
Published: May 30, 2017
Vulnerability identifier: #VU6798
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-9148
CWE-ID: CWE-592
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication on the target system.
The weakness exists due to failure when preventing resumption of an unauthenticated session by TLS session cache. A remote attacker can use PEAP or TTLS to bypass authentication and cause the target server to issue an Extensible Authentication Protocol (EAP)
Successful exploitation of the vulnerability may result in unauthorized access to the system.
The weakness exists due to failure when preventing resumption of an unauthenticated session by TLS session cache. A remote attacker can use PEAP or TTLS to bypass authentication and cause the target server to issue an Extensible Authentication Protocol (EAP)
Successful exploitation of the vulnerability may result in unauthorized access to the system.
Affected software
FreeRADIUS
Arch Linux
Red Hat Enterprise Linux for x86_64
CentOS
Ubuntu
Fedora
freeradius
Arch Linux
Red Hat Enterprise Linux for x86_64
CentOS
Ubuntu
Fedora
freeradius
How to mitigate CVE-2017-9148
Update to version 3.0.14.
freeradius - addressed in versions 3.0.14-1.fc25, 3.0.14-1.fc26