drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Überschreiben beliebiger Dateien in tnftp
Name: |
Überschreiben beliebiger Dateien in tnftp
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ID: |
200501-24 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Fr, 14. Januar 2005, 12:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1294
http://tigger.uic.edu/~jlongs2/holes/tnftp.txt |
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Applikationen: |
tnftp |
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Originalnachricht |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200501-24 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: tnftp: Arbitrary file overwriting Date: January 14, 2005 Bugs: #74704 ID: 200501-24
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Synopsis ========
tnftp fails to validate filenames when downloading files, making it vulnerable to arbitrary file overwriting.
Background ==========
tnftp is a NetBSD FTP client with several advanced features.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-ftp/tnftp < 20050103 >= 20050103
Description ===========
The 'mget' function in cmds.c lacks validation of the filenames that are supplied by the server.
Impact ======
An attacker running an FTP server could supply clients with malicious filenames, potentially allowing the overwriting of arbitrary files with the permission of the connected user.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All tnftp users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-ftp/tnftp-20050103"
References ==========
[ 1 ] CAN-2004-1294 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1294 [ 2 ] Original Advisory http://tigger.uic.edu/~jlongs2/holes/tnftp.txt
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200501-24.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 2005 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/2.0
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