drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen beliebiger Kommandos in Lynx
Name: |
Ausführen beliebiger Kommandos in Lynx |
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ID: |
200909-15 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Sa, 12. September 2009, 18:49 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2929
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4690
http://www.gentoo.org/security/en/glsa/glsa-200511-09.xml |
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Applikationen: |
Lynx |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200909-15 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Lynx: Arbitrary command execution Date: September 12, 2009 Bugs: #243058 ID: 200909-15
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Synopsis ========
An incomplete fix for an issue related to the Lynx URL handler might allow for the remote execution of arbitrary commands.
Background ==========
Lynx is a fully-featured WWW client for users running cursor-addressable, character-cell display devices such as vt100 terminals and terminal emulators.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-client/lynx < 2.8.6-r4 >=3D 2.8.6-r4
Description ===========
Clint Ruoho reported that the fix for CVE-2005-2929 (GLSA 200511-09) only disabled the lynxcgi:// handler when not using the advanced mode.
Impact ======
A remote attacker can entice a user to access a malicious HTTP server, causing Lynx to execute arbitrary commands. NOTE: The advanced mode is not enabled by default. Successful exploitation requires the "lynxcgi://" protocol to be registered with lynx on the victim's system.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All Lynx users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose =3Dwww-client/lynx-2.8.6-r4
References ==========
[ 1 ] CVE-2005-2929 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2005-2929 [ 2 ] CVE-2008-4690 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-4690 [ 3 ] GLSA 200511-09 http://www.gentoo.org/security/en/glsa/glsa-200511-09.xml
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200909-15.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 https://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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