CVE-2001-0669 describes a vulnerability in multiple Intrusion Detection Systems (IDS), including Cisco Secure IDS, Snort, and ISS RealSecure, where remote attackers can evade detection of HTTP attacks. This is achieved by using non-standard "%u" Unicode encoding for ASCII characters within requested URLs. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation, exploit code is publicly available via ExploitDB, though there is no significant community discussion or media coverage surrounding this older vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:cisco:catalyst_6000_intrusion_detection_system_module:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:cisco:secure_intrusion_detection_system:*:*:*:*:*:*:*:* | ||
5.xCPE matchmatch criteria | cpe:2.3:a:iss:realsecure_network_sensor:5.x:*:*:*:*:*:*:* | ||
6.xCPE matchmatch criteria | cpe:2.3:a:iss:realsecure_network_sensor:6.x:*:*:*:*:*:*:* | ||
5.5CPE matchmatch criteria | cpe:2.3:a:iss:realsecure_server_sensor:5.5:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.