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Gentoo Linux Security Advisory GLSA 201003-01 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: sudo: Privilege escalation |
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Date: March 03, 2010 |
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Bugs: #306865 |
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ID: 201003-01 |
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Synopsis |
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======== |
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|
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Two vulnerabilities in sudo might allow local users to escalate |
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privileges and execute arbitrary code with root 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 < 1.7.2_p4 >= 1.7.2_p4 |
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Description |
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=========== |
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|
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Multiple vulnerabilities have been discovered in sudo: |
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|
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* Glenn Waller and neonsignal reported that sudo does not properly |
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handle access control of the "sudoedit" pseudo-command |
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(CVE-2010-0426). |
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|
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* Harald Koenig reported that sudo does not properly set |
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supplementary groups when using the "runas_default" option |
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(CVE-2010-0427). |
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|
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Impact |
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====== |
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|
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A local attacker with privileges to use "sudoedit" or the privilege to |
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execute commands with the "runas_default" setting enabled could |
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leverage these vulnerabilities to execute arbitrary code with elevated |
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privileges. |
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Workaround |
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========== |
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|
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CVE-2010-0426: Revoke all "sudoedit" privileges, or use the full path |
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to sudoedit. CVE-2010-0427: Remove all occurrences of the |
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"runas_default" setting. |
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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-1.7.2_p4" |
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References |
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========== |
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[ 1 ] CVE-2010-0426 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0426 |
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[ 2 ] CVE-2010-0427 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0427 |
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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-201003-01.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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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2010 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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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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