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Last updated: 7/8/2015 12:24:14 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2007-6203

Original release date: 12/03/2007
Last revised: 07/18/2011


Apache HTTP Server 2.0.x and 2.2.x does not sanitize the HTTP Method specifier header from an HTTP request when it is reflected back in a "413 Request Entity Too Large" error message, which might allow cross-site scripting (XSS) style attacks using web client components that can send arbitrary headers in requests, as demonstrated via an HTTP request containing an invalid Content-length value, a similar issue to CVE-2006-3918.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification

Vendor Statements (disclaimer)

Official Statement from Red Hat (12/06/2007)
Red Hat does not consider this issue to be a vulnerability. In order to exploit this for cross-site scripting, the attacker would have to get the victim to supply an arbitrary malformed HTTP method to a target site.
Official Statement from Apache (06/09/2008)
The Apache Software Foundation security team does not consider this issue to be a security vulnerability. In order to exploit this for cross-site scripting, the attacker would have to get the victim to supply an arbitrary malformed HTTP method to a target site.

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External Source: UBUNTU
Name: USN-731-1
External Source: AIXAPAR
Name: PK57952
External Source: XF
Name: apache-413error-xss(38800)
External Source: BUGTRAQ
Name: 20071130 PR07-37: XSS on Apache HTTP Server 413 error pages via malformed HTTP method
External Source: BID
Name: 26663
External Source: HP
Name: HPSBUX02612
External Source: VUPEN
Name: ADV-2007-4060
External Source: APPLE
Name: APPLE-SA-2008-03-18
External Source: VUPEN
Name: ADV-2008-1623
External Source: SREASON
Name: 3411
External Source: AIXAPAR
Name: PK65782
External Source: CONFIRM
Name: http://docs.info.apple.com/article.html?artnum=307562
External Source: VUPEN
Name: ADV-2008-0924
External Source: SECTRACK
Name: 1019030
External Source: OVAL
Name: oval:org.mitre.oval:def:12166
External Source: CONFIRM
Name: http://www.fujitsu.com/global/support/software/security/products-f/interstage-200807e.html
External Source: GENTOO
Name: GLSA-200803-19
External Source: VUPEN
Name: ADV-2008-1875
External Source: VUPEN
Name: ADV-2007-4301
External Source: SUSE
Name: SUSE-SA:2008:021
External Source: HP
Name: HPSBUX02465
External Source: MISC
Name: http://procheckup.com/Vulnerability_PR07-37.php

References to Check Content

Identifier: oval:org.mitre.oval:def:12166
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)
  • Cross-Site Scripting (XSS) (CWE-79)