CVE-2001-0669

Published: Oct 30, 2001Modified: Apr 16, 2026

7.5

Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability: 10.0 / Impact: 6.4

Source: NVD

Description

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.

Affected (8)

Products: Cisco: Catalyst 6000 Intrusion Detection System Module, Secure Intrusion Detection System · Iss: Realsecure Network Sensor, Realsecure Server Sensor · Snort: Snort · +1 more

Show all products

Cisco: Catalyst 6000 Intrusion Detection System Module, Secure Intrusion Detection System · Iss: Realsecure Network Sensor, Realsecure Server Sensor · Snort: Snort · Enterasys: Dragon

Cisco

2 products

Catalyst 6000 Intrusion Detection System Module

Secure Intrusion Detection System

Iss

2 products

Realsecure Network Sensor

Realsecure Server Sensor

1 product

1 product

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Cisco Catalyst 6000 Intrusion Detection System Module	All versions
Cisco Secure Intrusion Detection System	All versions
Iss Realsecure Network Sensor	Version 5.x
Iss Realsecure Network Sensor	Version 6.x
Iss Realsecure Server Sensor	Version 5.5
Iss Realsecure Server Sensor	Version 6.0
Snort Snort	Version 1.8.1