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Gentoo Linux Security Advisory GLSA 200506-22 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: sudo: Arbitrary command execution |
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Date: June 23, 2005 |
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Bugs: #96618 |
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ID: 200506-22 |
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Synopsis |
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======== |
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|
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A vulnerability in sudo may allow local users to elevate privileges. |
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Background |
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========== |
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|
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sudo allows a system administrator to give users the ability to run |
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commands as other users. |
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|
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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 app-admin/sudo < 1.6.8_p9 >= 1.6.8_p9 |
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|
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Description |
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=========== |
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|
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The sudoers file is used to define the actions sudo users are permitted |
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to perform. Charles Morris discovered that a specific layout of the |
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sudoers file could cause the results of an internal check to be |
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clobbered, leaving sudo vulnerable to a race condition. |
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|
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Impact |
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====== |
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|
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Successful exploitation would permit a local sudo user to execute |
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arbitrary commands as another user. |
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Workaround |
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========== |
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Reorder the sudoers file using the visudo utility to ensure the 'ALL' |
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pseudo-command precedes other command definitions. |
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Resolution |
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========== |
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All sudo users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-admin/sudo-1.6.8_p9" |
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References |
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========== |
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[ 1 ] Sudo Announcement |
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http://www.sudo.ws/sudo/alerts/path_race.html |
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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-200506-22.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 2005 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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