From ${URL} : Vendor: The FreeRADIUS Project Product: FreeRADIUS server Affected Versions: 2.2.x (EOL but still found in some Linux distros): All versions. 3.0.x (stable): All versions before 3.0.14. 3.1.x and 4.0.x (development): All versions before 2017-02-04. Description: The implementation of TTLS and PEAP in FreeRADIUS skips inner authentication when it handles a resumed TLS connection. This is a feature but there is a critical catch: the server must never allow resumption of a TLS session until its initial connection gets to the point where inner authentication has been finished successfully. Unfortunately, affected versions of FreeRADIUS fail to reliably prevent resumption of unauthenticated sessions unless the TLS session cache is disabled completely and allow an attacker (e.g. a malicious supplicant) to elicit EAP Success without sending any valid credentials. Mitigation: (a) Disable TLS session caching. Set enabled = no in the cache subsection of eap module settings (raddb/mods-enabled/eap in the standard v3.0.x-style layout). (b) Upgrade to version 3.0.14. Credits: Stefan Winter of the RESTENA Foundation (initial discovery) Lubo� Pavl��ek of the University of Economics, Prague (independent rediscovery) Timeline: "a few months" ago: Vulnerability discovered and reported by Stefan Winter. 2017-02-03: The first (and mostly ineffective) attempt to fix the vulnerability in v3.0.x branch (commits 5aabc3b1 and 6b909d0c). 2017-02-04 Vulnerability fixed in v3.1.x and v4.0.x branches (commits 813a93a7 and c703ad96, respectively). 2017-03-06 Version 3.0.13 released without any explicit indication that it was supposed to fix a serious vulnerability (but it was probably better that way because the vulnerability was not really fixed). 2017-04-24 Vulnerability rediscovered by Lubo� Pavl��ek. 2017-04-25 PoC exploit developed and used to confirm 3.0.13 is still vulnerable. Vulnerability reported... again. 2017-05-08 The second (and hopefuly final) attempt to fix the vulnerability in v3.0.x (commits af030bd4 and 8f53382c). 2017-05-26 Version 3.0.14 released. References: [1] <http://freeradius.org/security.html> [2] <http://freeradius.org/press/index.html#3.0.14> @maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.
*** Bug 620102 has been marked as a duplicate of this bug. ***
@ Arches, please test and mark stable: =net-dialup/freeradius-3.0.14
amd64 stable
x86 stable. Maintainer(s), please cleanup. Security, please vote.
GLSA Vote: Yes New GLSA request filed.
This issue was resolved and addressed in GLSA 201706-27 at https://security.gentoo.org/glsa/201706-27 by GLSA coordinator Thomas Deutschmann (whissi).
