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Vulnerability Details : CVE-2011-3140

IBM Web Application Firewall, as used on the G400 IPS-G400-IB-1 and GX4004 IPS-GX4004-IB-2 appliances with update 31.030, does not properly handle query strings with multiple instances of the same parameter, which allows remote attackers to bypass intended intrusion prevention by dividing a dangerous parameter value into substrings, as demonstrated by a SQL statement that is split across multiple iid parameters and then sent to a .aspx file on an IIS web server.
Publish Date : 2011-08-15 Last Update Date : 2011-09-21
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Bypass a restriction or similar
CWE ID 264

- Products Affected By CVE-2011-3140

# Product Type Vendor Product Version Update Edition Language
1 Hardware IBM G400 Ips-g400-ib-1 Appliance 31.030 Version Details Vulnerabilities
2 Hardware IBM Gx4004 Ips-gx4004-ib-2 Appliance 31.030 Version Details Vulnerabilities
3 Application IBM Web Application Firewall - Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
IBM G400 Ips-g400-ib-1 Appliance 1
IBM Gx4004 Ips-gx4004-ib-2 Appliance 1
IBM Web Application Firewall 1

- References For CVE-2011-3140

http://securityreason.com/securityalert/8339
SREASON 8339
http://www.iss.net/security_center/reference/vuln/HTTP_Parameter_Abuse.htm CONFIRM
http://www.securityfocus.com/bid/48370
BID 48370 IBM Web Application Firewall Security Bypass Vulnerability Release Date:2011-06-21
http://www.securityfocus.com/archive/1/archive/1/518556/100/0/threaded
BUGTRAQ 20110621 TWSL2011-006: IBM Web Application Firewall Bypass
http://securitytracker.com/id?1025683
SECTRACK 1025683
https://www.trustwave.com/spiderlabs/advisories/TWSL2011-006.txt
http://xforce.iss.net/xforce/xfdb/67178
XF http-parameter-pollution(67178)

- Metasploit Modules Related To CVE-2011-3140

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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