Vulnerability in Cisco Network Admission Control
CVE-2006-4430
The Cisco Network Admission Control (NAC) 3.6.4.1 and earlier allows remote attackers to prevent installation of the Cisco Clean Access (CCA) Agent and bypass local and remote protection mechanisms by modifying (1) the HTTP User-Agent header or (2) the behavior of the TCP/IP stack. NOTE: the vendor has disputed the severity of this issue, stating that users cannot bypass authentication mechanisms.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.020 (79.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.020 · change: +0.000
Affected products
- Cisco Network Admission Control
- Cisco Network Admission Control Manager And Server System Software — versions 3.6.4.0.1, 3.5, 3.5\(9\)
References
- archive.cert.uni-stuttgart.de/archive/bugtraq/2005/08/msg00200.html (mailing-list)
- www.securityfocus.com/bid/19726 (vdb-entry)
- www.securityfocus.com/archive/1/444737/100/0/threaded (mailing-list)
- www.cisco.com/en/US/products/ps6128/products_security_notice09186a00804fa82b.ht… (vendor-advisory)
- www.securityfocus.com/archive/1/408603/30/0/threaded (mailing-list)
- www.cisco.com/en/US/products/ps6128/tsd_products_security_response09186a008071d… (vendor-advisory)
- www.securityfocus.com/archive/1/444501/100/0/threaded (mailing-list)
- www.securityfocus.com/archive/1/444424/100/0/threaded (mailing-list)