CVE-2011-3140

Public Exploit

Description

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.18%
Third-Party Advisory securityreason.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.trustwave.com/spiderlabs/advisories/TWSL2011-006.txt exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/67178 vdb entry
http://securityreason.com/securityalert/8339 third party advisory
http://www.securityfocus.com/bid/48370 vdb entry
http://www.securityfocus.com/archive/1/518556/100/0/threaded mailing list
http://www.iss.net/security_center/reference/vuln/HTTP_Parameter_Abuse.htm
http://securitytracker.com/id?1025683 vdb entry exploit

Frequently Asked Questions

What is the severity of CVE-2011-3140?
CVE-2011-3140 has been scored as a medium severity vulnerability.
How to fix CVE-2011-3140?
To fix CVE-2011-3140, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-3140 being actively exploited in the wild?
It is possible that CVE-2011-3140 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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