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="200407-05">
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<title>XFree86, X.org: XDM ignores requestPort setting</title>
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<synopsis>
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XDM will open TCP sockets for its chooser, even if the
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DisplayManager.requestPort setting is set to 0. This may allow authorized
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users to access a machine remotely via X, even if the administrator has
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configured XDM to refuse such connections.
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</synopsis>
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<product type="ebuild">xdm</product>
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<announced>July 05, 2004</announced>
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<revised>July 05, 2004: 01</revised>
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<bug>53226</bug>
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<access>remote</access>
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<affected>
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<package name="x11-base/xfree" auto="yes" arch="*">
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<unaffected range="ge">4.3.0-r6</unaffected>
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<vulnerable range="le">4.3.0-r5</vulnerable>
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</package>
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<package name="x11-base/xorg-x11" auto="yes" arch="*">
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<unaffected range="ge">6.7.0-r1</unaffected>
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<vulnerable range="le">6.7.0</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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The X Display Manager (XDM) is a program which provides a graphical login
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prompt to users on the console or on remote X terminals. It has largely
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been superseded by programs such as GDM and KDM.
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</p>
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</background>
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<description>
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<p>
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XDM will open TCP sockets for its chooser, even if the
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DisplayManager.requestPort setting is set to 0. Remote clients can use this
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port to connect to XDM and request a login window, thus allowing access to
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the system.
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</p>
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</description>
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<impact type="low">
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<p>
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Authorized users may be able to login remotely to a machine running XDM,
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even if this option is disabled in XDM's configuration. Please note that an
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attacker must have a preexisting account on the machine in order to exploit
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this vulnerability.
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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. All users should upgrade to the
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latest available version of X.
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</p>
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</workaround>
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<resolution>
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<p>
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If you are using XFree86, you should run the following:
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</p>
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<code>
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# emerge sync
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# emerge -pv ">=x11-base/xfree-4.3.0-r6"
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# emerge ">=x11-base/xfree-4.3.0-r6"</code>
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<p>
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If you are using X.org's X11 server, you should run the following:
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</p>
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<code>
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# emerge sync
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# emerge -pv ">=x11-base/xorg-x11-6.7.0-r1"
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# emerge ">=x11-base/xorg-x11-6.7.0-r1"</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-2004-0419">CAN 2004-0419</uri>
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<uri link="http://bugs.xfree86.org/show_bug.cgi?id=1376">XFree86 Bug</uri>
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</references>
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<metadata tag="submitter">
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condordes
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</metadata>
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</glsa>
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