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80 lines
2.6 KiB
80 lines
2.6 KiB
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200501-22">
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<title>poppassd_pam: Unauthorized password changing</title>
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<synopsis>
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poppassd_pam allows anyone to change any user's password without
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authenticating the user first.
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</synopsis>
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<product type="ebuild">poppassd_pam</product>
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<announced>January 11, 2005</announced>
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<revised>January 11, 2005: 01</revised>
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<bug>75820</bug>
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<access>remote</access>
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<affected>
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<package name="net-mail/poppassd_ceti" auto="yes" arch="*">
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<unaffected range="ge">1.8.4</unaffected>
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<vulnerable range="le">1.0</vulnerable>
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</package>
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<package name="net-mail/poppassd_pam" auto="yes" arch="*">
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<vulnerable range="le">1.0</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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poppassd_pam is a PAM-enabled server for changing system passwords
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that can be used to change POP server passwords.
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</p>
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</background>
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<description>
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<p>
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Gentoo Linux developer Marcus Hanwell discovered that poppassd_pam
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did not check that the old password was valid before changing
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passwords. Our investigation revealed that poppassd_pam did not call
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pam_authenticate before calling pam_chauthtok.
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</p>
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</description>
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<impact type="high">
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<p>
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A remote attacker could change the system password of any user,
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including root. This leads to a complete compromise of the POP
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accounts, and may also lead to a complete root compromise of the
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affected server, if it also provides shell access authenticated using
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system passwords.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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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 poppassd_pam users should migrate to the new package called
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poppassd_ceti:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-mail/poppassd_ceti-1.8.4"</code>
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<p>
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Note: Portage will automatically replace the poppassd_pam
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package by the poppassd_ceti package.
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</p>
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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-2005-0002">CAN-2005-0002</uri>
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</references>
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<metadata tag="requester" timestamp="Tue, 11 Jan 2005 08:56:45 +0000">
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koon
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</metadata>
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<metadata tag="submitter" timestamp="Tue, 11 Jan 2005 12:12:22 +0000">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="Tue, 11 Jan 2005 19:52:14 +0000">
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koon
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</metadata>
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</glsa>
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