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Gentoo Linux Security Advisory GLSA 200411-33 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: TWiki: Arbitrary command execution |
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Date: November 24, 2004 |
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Bugs: #71035 |
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ID: 200411-33 |
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Synopsis |
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======== |
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|
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A bug in the TWiki search function allows an attacker to execute |
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arbitrary commands with the permissions of the user running TWiki. |
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Background |
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========== |
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|
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TWiki is a Web-based groupware tool based around the concept of wiki |
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pages that can be edited by anybody with a Web browser. |
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 www-apps/twiki < 20040902 >= 20040902 |
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Description |
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=========== |
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|
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The TWiki search function, which uses a shell command executed via the |
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Perl backtick operator, does not properly escape shell metacharacters |
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in the user-provided search string. |
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Impact |
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====== |
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|
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An attacker can insert malicious commands into a search request, |
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allowing the execution of arbitrary commands with the privileges of the |
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user running TWiki (usually the Web server user). |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All TWiki users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=www-apps/twiki-20040902" |
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References |
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========== |
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[ 1 ] TWiki Security Alert |
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http://twiki.org/cgi-bin/view/Codev/SecurityAlertExecuteCommandsWithSearch |
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[ 2 ] CAN-2004-1037 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1037 |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200411-33.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2004 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.0 |
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