Radius OTP Bypass Vulnerability
Severity: CRITICAL
CVE Identifier: CVE-2009-1135
Advisory Date: FEB 15, 2011
DESCRIPTION
Microsoft Internet Security and Acceleration (ISA) Server 2006 Gold and SP1, when Radius OTP is enabled, uses the HTTP-Basic authentication method, which allows remote attackers to gain the privileges of an arbitrary account, and access published web pages, via vectors involving attempted access to a network resource behind the ISA Server, aka "Radius OTP Bypass Vulnerability."
TREND MICRO PROTECTION INFORMATION
Trend Micro Deep Security shields networks through Deep Packet Inspection (DPI) rules. Trend Micro customers using OfficeScan with Intrusion Defense Firewall (IDF) plugin are also protected from attacks using these vulnerabilities. Please refer to the filter number and filter name when applying appropriate DPI and/or IDF rules.
SOLUTION
Trend Micro Deep Security DPI Rule Number: 1003621
Trend Micro Deep Security DPI Rule Name: 1003621 - RADIUS OTP Bypass Vulnerability
AFFECTED SOFTWARE AND VERSION
- microsoft isa_server 2006
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