Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.
First Last Prev Next    This bug is not in your last search results.
Bug 1456697 - (CVE-2017-9148) CVE-2017-9148 freeradius: TLS resumption authentication bypass
CVE-2017-9148 freeradius: TLS resumption authentication bypass
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
: ---
: ---
Assigned To: Red Hat Product Security
impact=important,public=20170508,repo...
: Security
Depends On: 1456698 1458746 1459131
Blocks: 1456700
  Show dependency tree / graph
 
Reported: 2017-05-30 03:48 EDT by Andrej Nemec
Modified: 2017-07-25 17:11 EDT (History)
8 users (show)

See Also:
Fixed In Version: freeradius 3.0.14
Doc Type: If docs needed, set a value
Doc Text:
An authentication bypass flaw was found in the way the EAP module in FreeRADIUS handled TLS session resumption. A remote unauthenticated attacker could potentially use this flaw to bypass the inner authentication check in FreeRADIUS by resuming an older unauthenticated TLS session.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2017-07-25 17:11:01 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Backported fix for FreeRADIUS 3.0.4 (1.39 KB, patch)
2017-06-15 06:00 EDT, Dhiru Kholia 		no flags Details | Diff
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:1581 normal SHIPPED_LIVE Important: freeradius security update 2017-06-28 05:08:07 EDT

  None (edit)
Description Andrej Nemec 2017-05-30 03:48:49 EDT 
The TLS session cache in FreeRADIUS 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.

References:

http://seclists.org/oss-sec/2017/q2/342
http://seclists.org/oss-sec/2017/q2/422
http://freeradius.org/security.html

Upstream patches:

https://github.com/FreeRADIUS/freeradius-server/commit/af030bd4
https://github.com/FreeRADIUS/freeradius-server/commit/8f53382c
Comment 1 Andrej Nemec 2017-05-30 03:49:23 EDT 
Created freeradius tracking bugs for this issue:

Affects: fedora-all [bug 1456698]
Comment 3 Dhiru Kholia 2017-06-06 02:58:58 EDT 
Mitigation:

Disable TLS session caching in FreeRADIUS by setting "enable = no" in the cache subsection of EAP module settings, which are in /etc/raddb/mods-available/eap file.
Comment 15 Dhiru Kholia 2017-06-15 06:00 EDT 
Created attachment 1287974 [details]
Backported fix for FreeRADIUS 3.0.4
Comment 16 errata-xmlrpc 2017-06-28 01:08:31 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1581 https://access.redhat.com/errata/RHSA-2017:1581
Note You need to log in before you can comment on or make changes to this bug.
First Last Prev Next    This bug is not in your last search results.