| Lucent Plugs SIP Vulnerability Lucent Plugs SIP Vulnerability |
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| Written by Administrator | |
| Wednesday, 13 September 2006 | |
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Lucent Technologies says it has fixed one of the most serious security flaws tied to SIP and other dynamic protocols used to deliver advanced IP services like VoIP.
This week, the company released the newest additions to the VPN Firewall portfolio in the form of the VPN Firewall Brick 700 and Brick 1200. The line features a technology called Dynamic Pinholing designed to shut down non-essential ports during IP sessions. IP service providers and large enterprise networks have long had to contend with the fact that SIP, FTP, Telnet and other dynamic protocols require the use of multiple ports to deliver associated data during a session. When the data transfer is completed, the port is often left open, allowing hackers to conduct a random port scan to gain access to secure networks. Full article here |
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