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Internet Explorer HTTP-Request-Smuggling/Splitting Sicherheitslücken Advisory Available in English 

Secunia Advisory: SA29453  
Herausgegeben: 2008-03-24
Last Update: 2008-06-11

Gefahrenstufe:
Weniger kritisch
Auswirkung: Sicherheitsumgehung
Cross-Site-Scripting
Enthüllung von sensiblen Informationen
Von Wo: Aus dem Internet
Lösungsstatus: Hersteller-Patch

Software:Microsoft Internet Explorer 5.01
Microsoft Internet Explorer 6.x
Microsoft Internet Explorer 7.x

CVE reference:CVE-2008-1544 (Secunia mirror)
CVE-2008-1545 (Secunia mirror)

Want to know the next time vulnerabilities are fixed in this product?
- Companies can be alerted via email and SMS!


Beschreibung:
Stefano Di Paola hat einige Sicherheitslücken in Internet Explorer gemeldet, die böswillige Personen ausnutzen können, um HTTP-Request-Smuggling/Splitting-Attacken durchzuführen.

Das Problem besteht, da es möglich ist, bestimmte Header über "setRequestHeader()" zu modifizieren. Dies kann ausgenutzt werden, um z.B. beliebige HTTP-Anfragen einzuschleusen, indem man den Header "Transfer-Encoding" auf "chunked" setzt, oder um bestimmte Header zu überschreiben (z.B. "Content-Length", "Host" und "Referer").

Die Sicherheitslücken wurden in Version 7.0.5730.11 gemeldet. Andere Versionen können ebenfalls betroffen sein.

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.

Lösung:
Verwenden Sie die Patches.

Windows 2000 SP4 mit Internet Explorer 5.01 SP4:
http://www.microsoft.com/downloads/de...=88990B23-D37F-4D02-A5A3-2EE389ADE53C

Windows 2000 SP4 mit Internet Explorer 6 SP1:
http://www.microsoft.com/downloads/de...=4C47CF8A-8100-4D43-855A-F225A3492B19

Windows XP SP2 mit Internet Explorer 6:
http://www.microsoft.com/downloads/de...=CC325017-3A48-4475-90E4-0C79A002FCE3

Windows XP SP3 mit Internet Explorer 6:
http://www.microsoft.com/downloads/de...=CC325017-3A48-4475-90E4-0C79A002FCE3

Windows XP Professional x64 Edition (optional mit SP2) und Internet Explorer 6:
http://www.microsoft.com/downloads/de...=C8783CFE-9DA5-4842-AB3A-1E2BE4FAFC47

Windows Server 2003 SP1/SP2 und Internet Explorer 6:
http://www.microsoft.com/downloads/de...=286AADA6-A358-41F1-B81A-8DE39B9F908A

Windows Server 2003 x64 Edition (optional mit SP2) und Internet Explorer 6:
http://www.microsoft.com/downloads/de...=6604569A-3DB0-47E7-BD30-7DFBA8145386

Windows Server 2003 mit SP1/SP2 für Itanium-basierte Systeme und Internet Explorer 6:
http://www.microsoft.com/downloads/de...=0262BEB8-1EB5-4C2D-A50A-0C6C6E0C1F61

Windows XP SP2/SP3 und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=FBC31BDE-0BF5-490C-96A8-071310D9464A

Windows XP Professional x64 Edition (optional mit SP2) und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=19C0CCDC-95C9-4151-96B6-4F49B594EBE0

Windows Server 2003 SP1/SP2 und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=A1AE9AD2-8329-4C96-B950-7534B3287EAA

Windows Server 2003 x64 Edition (optional mit SP2) und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=FB0C70B4-CE9F-43D6-875A-3CFD0D3A2681

Windows Server 2003 mit SP1/SP2 für Itanium-basierte Systeme und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=28D2913C-1C6B-4671-9892-DE08698CD5A6

Windows Vista (optional mit SP1) und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=6D68B39D-157F-4C3D-AC76-BC5A9386DB59

Windows Vista x64 Edition (optional mit SP1) und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=4CF92235-861E-4B74-BEE3-8E977C8688D9

Windows Server 2008 für 32-bit Systeme und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=A8922E7E-9264-4E09-B8AD-C5420FED8690

Windows Server 2008 für x64-basierte Systeme und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=05B0E838-24D7-4387-B069-2604BBCC43B9

Windows Server 2008 für Itanium-basierte Systeme und Internet Explorer 7:
http://www.microsoft.com/downloads/de...=640E1865-EBCC-4D69-A770-FD360020DA1E

Gemeldet und/oder entdeckt von:
Stefano Di Paola

Änderungen:
2008-04-01: CVE-Referenz hinzugefügt.
2008-06-10: "Lösung" aktualisiert.

Original Advisory:
MS08-031 (KB950759):
http://www.microsoft.com/technet/security/Bulletin/MS08-031.mspx

Stefano Di Paola:
http://www.mindedsecurity.com/MSA01240108.html
http://www.mindedsecurity.com/MSA02240108.html



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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