The Cisco Network Admission Control (NAC) 188.8.131.52 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.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
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the CVE-ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
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