FreeRADIUS -- TLS resumption authentication bypass

2017-02-0300:00:00

vuxml.freebsd.org

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.007

Percentile

80.3%

JSON

Stefan Winter reports:

The TLS session cache in FreeRADIUS before 3.0.14 fails to
reliably prevent resumption of an unauthenticated session, which
allows remote attackers (such as malicious 802.1X supplicants) to
bypass authentication via PEAP or TTLS.

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchfreeradius< 3.0.14UNKNOWN
FreeBSDanynoarchfreeradius2< 3.0.14UNKNOWN
FreeBSDanynoarchfreeradius3< 3.0.14UNKNOWN