-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Cisco Security Advisory: Cisco Web Security Appliance HTTPS Packet Processing Denial of Service Vulnerability Advisory ID: cisco-sa-20160302-wsa Revision 1.0 Published: 2016 March 2 16:00 GMT +--------------------------------------------------------------------- Summary ======= A vulnerability in the web proxy framework of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker with the ability to negotiate a secure connection from within the trusted network to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to incorrect processing of HTTPS packets. An attacker could exploit this vulnerability by sending a malformed HTTPS request packet through the affected device. A successful exploit could allow an attacker to create a DoS condition, causing all requests traversing the WSA to be dropped. The condition is temporary and no manual intervention is required to restore functionality. Cisco has released software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-wsa -----BEGIN PGP SIGNATURE----- Comment: GPGTools - https://gpgtools.org iQIcBAEBCgAGBQJW1xjZAAoJEK89gD3EAJB5qt0QAOMm2cWsVxNKWQul+HYxzATd KI82WfeAgoBxDMXsC1GcpnAwPEbOQMNW2lz9fg/M5dNoEKQjnsHm2pXQIj8OlT8D AYw3PmLac/Hs0EWz9G7b6MeuyyHcKTlLRNtg+K/wnX4Z5sqXe/p3cBJixmFbJZjC mkRXpIZrt9XjLZDBi89PQPzIDkJ5oDB7S+oWR/H9QBYyy3d723Fb6tRwzNvKCpLx IoYLVM8xV9Q+xTSJcPCrbER8wPZDm163SwTxkRs2RpY5uVswQKwJuyOzNUnQbcvX 9syjzPWE9WK8LZcy0fnz2n55Te1pcjDWadoftu+ZuOCiQHsAdmhhjSOuUZdCON2Z oF0q0Hd5rN9mB6TG4zIUGAsrwNWAJ4XKeWxJVyhIsuBIlAzFsDGRIMurRy+N97xS ZbfQ2yD27Ktm2E8aO1yqAerPEi8KQWfrOdvSxKWnxB0b4SmK729DPBOMk77O1JB6 StGeVtS6yp/PazvRAG7VPqgwneAbkxDOJNcNT966hjUcmgJGiURtWkpWd3RTUFh8 vjC2ei8eM3jJ2novh6XcQmRh9Z9i5h6BYQkNqs3K5egM/H6G3N36Ksk+L/cdCOdG EF1iST+L6pX2H51mmMufGfJg/sZNBRF4LL3zGTDxat8RLpwISzypRxQwLemZYC20 GEO5+YGIotDsyPcoQ3HL =aqwj -----END PGP SIGNATURE-----
