Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2001-0669

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
30/10/2001
Last modified:
03/04/2025

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.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:catalyst_6000_intrusion_detection_system_module:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_intrusion_detection_system:*:*:*:*:*:*:*:*
cpe:2.3:a:iss:realsecure_network_sensor:5.x:*:*:*:*:*:*:*
cpe:2.3:a:iss:realsecure_network_sensor:6.x:*:*:*:*:*:*:*
cpe:2.3:a:iss:realsecure_server_sensor:5.5:*:*:*:*:*:*:*
cpe:2.3:a:iss:realsecure_server_sensor:6.0:*:*:*:*:*:*:*
cpe:2.3:a:snort:snort:1.8.1:*:*:*:*:*:*:*
cpe:2.3:h:enterasys:dragon:4.x:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools