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.
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by blackangels · perlremotemultiple
https://www.exploit-db.com/exploits/21100
References (5)
Scores
EPSS
0.4148
EPSS Percentile
97.4%
Details
Status
published
Products (8)
cisco/catalyst_6000_intrusion_detection_system_module
cisco/secure_intrusion_detection_system
enterasys/dragon
4.x
iss/realsecure_network_sensor
5.x
iss/realsecure_network_sensor
6.x
iss/realsecure_server_sensor
5.5
iss/realsecure_server_sensor
6.0
snort/snort
1.8.1
Published
Oct 30, 2001
Tracked Since
Feb 18, 2026