Vulnerability CVE-2008-1544
Published: 2008-03-28   Modified: 2012-02-12

Description:
The setRequestHeader method of the XMLHttpRequest object in Microsoft Internet Explorer 5.01, 6, and 7 does not block dangerous HTTP request headers when certain 8-bit character sequences are appended to a header name, which allows remote attackers to (1) conduct HTTP request splitting and HTTP request smuggling attacks via an incorrect Content-Length header, (2) access arbitrary virtual hosts via a modified Host header, (3) bypass referrer restrictions via an incorrect Referer header, and (4) bypass the same-origin policy and obtain sensitive information via a crafted request header.

See advisories in our WLB2 database:
Topic
Author
Date
Low
IE7 allows overwriting of several headers leading toHttp request Splitting and smuggling.
Stefano Di Paola
29.03.2008

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.1/10
6.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
None
None
Affected software
Microsoft -> Internet explorer 

 References:
http://marc.info/?l=bugtraq&m=121380194923597&w=2
http://securityreason.com/securityalert/3785
http://www.mindedsecurity.com/MSA02240108.html
http://www.securityfocus.com/archive/1/489954/100/0/threaded
http://www.securityfocus.com/bid/28379
http://www.securitytracker.com/id?1020226
http://www.us-cert.gov/cas/techalerts/TA08-162B.html
http://www.vupen.com/english/advisories/2008/0980
http://www.vupen.com/english/advisories/2008/1778
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-031
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5291
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