82 lines
2.8 KiB
XML
82 lines
2.8 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="200412-01">
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<title>rssh, scponly: Unrestricted command execution</title>
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<synopsis>
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rssh and scponly do not filter command-line options that can be exploited
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to execute any command, thereby allowing a remote user to completely bypass
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the restricted shell.
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</synopsis>
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<product type="ebuild">scponly</product>
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<announced>2004-12-03</announced>
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<revised count="03">2006-05-22</revised>
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<bug>72815</bug>
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<bug>72816</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/scponly" auto="yes" arch="*">
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<unaffected range="ge">4.0</unaffected>
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<vulnerable range="lt">4.0</vulnerable>
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</package>
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<package name="app-shells/rssh" auto="yes" arch="*">
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<unaffected range="ge">2.2.3</unaffected>
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<vulnerable range="le">2.2.2</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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rssh and scponly are two restricted shells, allowing only a few
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predefined commands. They are often used as a complement to OpenSSH to
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provide access to remote users without providing any remote execution
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privileges.
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</p>
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</background>
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<description>
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<p>
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Jason Wies discovered that when receiving an authorized command from an
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authorized user, rssh and scponly do not filter command-line options
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that can be used to execute any command on the target host.
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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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Using a malicious command, it is possible for a remote authenticated
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user to execute any command (or upload and execute any file) on the
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target machine with user rights, effectively bypassing any restriction
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of scponly or rssh.
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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 scponly 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 ">=net-misc/scponly-4.0"</code>
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<p>
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All rssh 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 ">=app-shells/rssh/rssh-2.2.3"</code>
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</resolution>
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<references>
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<uri link="http://www.securityfocus.com/archive/1/383046/2004-11-30/2004-12-06/0">BugTraq Posting</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1161">CVE-2004-1161</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1162">CVE-2004-1162</uri>
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</references>
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<metadata tag="requester" timestamp="2004-12-01T09:03:59Z">
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koon
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</metadata>
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<metadata tag="submitter" timestamp="2004-12-02T13:01:44Z">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="2004-12-03T13:57:43Z">
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koon
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</metadata>
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</glsa>
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