55 lines
2 KiB
XML
55 lines
2 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="201706-27">
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<title>FreeRADIUS: Security bypass</title>
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<synopsis>A vulnerability in FreeRADIUS might allow remote attackers to
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bypass authentication.
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</synopsis>
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<product type="ebuild">freeradius</product>
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<announced>2017-06-27</announced>
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<revised count="1">2017-06-27</revised>
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<bug>620186</bug>
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<access>remote</access>
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<affected>
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<package name="net-dialup/freeradius" auto="yes" arch="*">
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<unaffected range="ge">3.0.14</unaffected>
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<vulnerable range="lt">3.0.14</vulnerable>
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</package>
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</affected>
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<background>
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<p>FreeRADIUS is an open source RADIUS authentication server.</p>
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</background>
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<description>
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<p>It was discovered that the implementation of TTLS and PEAP in FreeRADIUS
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skips inner authentication when it handles a resumed TLS connection. The
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affected versions of FreeRADIUS fails to reliably prevent the resumption
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of unauthenticated sessions unless the TLS session cache is disabled
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completely.
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</p>
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</description>
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<impact type="normal">
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<p>An unauthenticated remote user can bypass authentication by starting a
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session, and then resuming an unauthenticated TLS session before inner
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authentication has been completed successfully.
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</p>
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</impact>
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<workaround>
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<p>Set “enabled = no” in the cache subsection of eap module settings to
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disable TLS session caching.
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</p>
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</workaround>
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<resolution>
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<p>All FreeRADIUS users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-dialup/freeradius-3.0.14"
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</code>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-9148">CVE-2017-9148</uri>
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</references>
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<metadata tag="requester" timestamp="2017-06-09T12:42:38Z">whissi</metadata>
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<metadata tag="submitter" timestamp="2017-06-27T09:57:00Z">whissi</metadata>
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</glsa>
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