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Vulnerability Details : CVE-2001-0669

Various Intrusion Detection Systems (IDS) including (1) Cisco Secure Intrusion Detection System, (2) Cisco Catalyst 6000 Intrusion Detection System Module, (3) Dragon Sensor 4.x, (4) Snort before 1.8.1, (5) ISS RealSecure Network Sensor 5.x and 6.x before XPU 3.2, and (6) ISS RealSecure Server Sensor 5.5 and 6.0 for Windows, allow remote attackers to evade detection of HTTP attacks via non-standard "%u" Unicode encoding of ASCII characters in the requested URL.
Publish Date : 2001-10-30 Last Update Date : 2016-10-18
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
Confidentiality Impact Partial (There is considerable informational disclosure.)
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 Partial (There is reduced performance or interruptions in resource availability.)
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)
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2001-0669

# Product Type Vendor Product Version Update Edition Language
1 Application Cisco Catalyst 6000 Intrusion Detection System Module * * * * Version Details Vulnerabilities
2 Application Cisco Secure Intrusion Detection System * * * * Version Details Vulnerabilities
3 Hardware Enterasys Dragon 4.X * * * Version Details Vulnerabilities
4 Application ISS Realsecure Network Sensor 5.X * * * Version Details Vulnerabilities
5 Application ISS Realsecure Network Sensor 6.X * * * Version Details Vulnerabilities
6 Application ISS Realsecure Server Sensor 5.5 * * * Version Details Vulnerabilities
7 Application ISS Realsecure Server Sensor 6.0 * * * Version Details Vulnerabilities
8 Application Snort Snort 1.8.1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Cisco Catalyst 6000 Intrusion Detection System Module 1
Cisco Secure Intrusion Detection System 1
Enterasys Dragon 1
ISS Realsecure Network Sensor 2
ISS Realsecure Server Sensor 2
Snort Snort 1

- References For CVE-2001-0669

http://marc.info/?l=bugtraq&m=99972950200602&w=2
BUGTRAQ 20010905 %u encoding IDS bypass vulnerability
http://www.kb.cert.org/vuls/id/548515
CERT-VN VU#548515
http://www.securityfocus.com/bid/3292
BID 3292 Multiple IDS Vendor Encoded IIS Attack Detection Evasion Vulnerability Release Date:2001-09-05
http://www.cisco.com/warp/public/707/cisco-intrusion-detection-obfuscation-vuln-pub.shtml
CISCO 20010905 Cisco Secure Intrusion Detection System Signature Obfuscation Vulnerability
http://xforce.iss.net/alerts/advise95.php
ISS 20010905 Multiple Vendor IDS Unicode Bypass Vulnerability

- Metasploit Modules Related To CVE-2001-0669

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


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