GLSA Advocate

Joined: 12 May 2004 Posts: 2663
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Posted: Wed Jul 12, 2017 12:26 am Post subject: [ GLSA 201706-27 ] FreeRADIUS |
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Gentoo Linux Security Advisory
Title: FreeRADIUS: Security bypass (GLSA 201706-27)
Severity: normal
Exploitable: remote
Date: 2017-06-27
Bug(s): #620186
ID: 201706-27
Synopsis
A vulnerability in FreeRADIUS might allow remote attackers to
bypass authentication.
Background
FreeRADIUS is an open source RADIUS authentication server.
Affected Packages
Package: net-dialup/freeradius
Vulnerable: < 3.0.14
Unaffected: >= 3.0.14
Architectures: All supported architectures
Description
It was discovered that the implementation of TTLS and PEAP in FreeRADIUS
skips inner authentication when it handles a resumed TLS connection. The
affected versions of FreeRADIUS fails to reliably prevent the resumption
of unauthenticated sessions unless the TLS session cache is disabled
completely.
Impact
An unauthenticated remote user can bypass authentication by starting a
session, and then resuming an unauthenticated TLS session before inner
authentication has been completed successfully.
Workaround
Set “enabled = no” in the cache subsection of eap module settings to
disable TLS session caching.
Resolution
All FreeRADIUS users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=net-dialup/freeradius-3.0.14"
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References
CVE-2017-9148 |
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