81 lines
2.7 KiB
XML
81 lines
2.7 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="200507-13">
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<title>pam_ldap and nss_ldap: Plain text authentication leak</title>
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<synopsis>
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pam_ldap and nss_ldap fail to restart TLS when following a referral,
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possibly leading to credentials being sent in plain text.
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</synopsis>
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<product type="ebuild">pam_ldap nss_ldap</product>
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<announced>July 14, 2005</announced>
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<revised>July 14, 2005: 01</revised>
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<bug>96767</bug>
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<access>remote</access>
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<affected>
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<package name="sys-auth/nss_ldap" auto="yes" arch="*">
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<unaffected range="ge">239-r1</unaffected>
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<unaffected range="rge">226-r1</unaffected>
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<vulnerable range="lt">239-r1</vulnerable>
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</package>
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<package name="sys-auth/pam_ldap" auto="yes" arch="*">
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<unaffected range="ge">178-r1</unaffected>
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<vulnerable range="lt">178-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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pam_ldap is a Pluggable Authentication Module which allows
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authentication against an LDAP directory. nss_ldap is a Name Service
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Switch module which allows 'passwd', 'group' and 'host' database
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information to be pulled from LDAP. TLS is Transport Layer Security, a
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protocol that allows encryption of network communications.
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</p>
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</background>
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<description>
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<p>
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Rob Holland of the Gentoo Security Audit Team discovered that
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pam_ldap and nss_ldap fail to use TLS for referred connections if they
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are referred to a master after connecting to a slave, regardless of the
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"ssl start_tls" ldap.conf setting.
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</p>
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</description>
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<impact type="normal">
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<p>
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An attacker could sniff passwords or other sensitive information
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as the communication is not encrypted.
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</p>
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</impact>
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<workaround>
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<p>
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pam_ldap and nss_ldap can be set to force the use of SSL instead
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of TLS.
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</p>
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</workaround>
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<resolution>
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<p>
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All pam_ldap users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=sys-auth/pam_ldap-178-r1"</code>
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<p>
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All nss_ldap users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose sys-auth/nss_ldap</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2069">CAN-2005-2069</uri>
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</references>
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<metadata tag="requester" timestamp="Mon, 04 Jul 2005 08:55:26 +0000">
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tigger
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</metadata>
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<metadata tag="submitter" timestamp="Mon, 04 Jul 2005 14:18:57 +0000">
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tigger
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</metadata>
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<metadata tag="bugReady" timestamp="Thu, 14 Jul 2005 09:08:58 +0000">
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koon
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</metadata>
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</glsa>
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