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TITLE:
Nortel CallPilot Web VPN Same Origin Policy Bypass

SECUNIA ADVISORY ID:
SA37789

VERIFY ADVISORY:
http://secunia.com/advisories/37789/

DESCRIPTION:
A vulnerability has been reported in Nortel CallPilot, which can be
exploited by malicious people to bypass certain security
restrictions.

The vulnerability is caused due to the web-based VPN implementation
prepending the same domain to all opened websites. This can be
exploited to bypass a browser's same origin policy and e.g. access
cookies for normally restricted domains by tricking a user into
browsing to a malicious website via the VPN.   

The vulnerability is reported in CallPilot 201i, 202i, 600r, 703t,
1002rp, and 1005r.

SOLUTION:
The vendor recommends to avoid browsing other web sites while logged
in to CallPilot Manager or My CallPilot.

PROVIDED AND/OR DISCOVERED BY:
US-CERT credits Michal Zalewski and Mike Zusman for the original
report.

Additional vulnerability details provided by David Warren and Ryan
Giobbi of US-CERT.

ORIGINAL ADVISORY:
Nortel:
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&DocumentOID=984744

US-CERT VU#261869:
http://www.kb.cert.org/vuls/id/261869

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