R3000 Internet Filter URL filter security bypass

r3000-urlfilter-security-bypass (39723)

Medium Risk

Description:

R3000 Internet Filter could allow a remote attacker to bypass security restrictions, caused by a weakness in URL filtering. By splitting a HTTP GET request into multiple packets, an attacker could gain access to restricted Web sites.

*CVSS:

Base Score:	5
Access Vector:	Network
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	None
Temporal Score:	4.8
Exploitability:	High
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Bypass Security

Remedy:

Upgrade to the latest version of R3000 Internet Filter (2.0.11 or later), available from the 8e6 Technologies Web site. See References.

References:

• 8e6 Technologies Web site: 8e6 Technologies.
• BugTraq Mailing List, Tue Jan 15 2008 - 20:55:20 CST : 8e6 Technologies R3000 Internet Filter Bypass by Request Split.
• BID-27309: 8E6 R3000 Internet Filter URI Security Bypass Vulnerability
• CVE-2008-0372: 8e6 R3000 Internet Filter 2.0.05.33, and other versions before 2.0.11, allows remote attackers to bypass intended restrictions via a fragmented HTTP request.
• OSVDB ID: 40513: 8e6 Technologies R3000 Internet Filter Fragmented HTTP Request Remote Security Bypass
• SA28524: 8e6 R3000 Internet Filter URL Filter Bypass Vulnerability

Platforms Affected:

• 8e6 Technologies R3000 Internet Filter 2.0.05.33

Reported:

Jan 15, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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