drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Unsichere Verwendung temporärer Dateien in Shadow
Name: |
Unsichere Verwendung temporärer Dateien in Shadow |
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ID: |
200903-24 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Di, 10. März 2009, 23:46 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5394 |
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Applikationen: |
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Severity: High Title: Shadow: Privilege escalation Date: March 10, 2009 Bugs: #251320 ID: 200903-24
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Synopsis ========
An insecure temporary file usage in Shadow may allow local users to gain root privileges.
Background ==========
Shadow is a set of tools to deal with user accounts.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/shadow < 4.1.2.2 >=3D 4.1.2.2
Description ===========
Paul Szabo reported a race condition in the "login" executable when setting up tty permissions.
Impact ======
A local attacker belonging to the "utmp" group could use symlink attacks to overwrite arbitrary files and possibly gain root privileges.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All Shadow users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=3Dsys-apps/shadow-4.1.2.2"
References ==========
[ 1 ] CVE-2008-5394 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-5394
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200903-24.xml
Concerns? =========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License =======
Copyright 2009 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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