Well, no shit sherlock

[ihateemo.livejournal.com]

I'm posting this without passing comment on the obvious kicker at the end of the article.

Cisco can't reproduce Black Hat flaw

Cisco Systems has been unable to reproduce a security flaw reported in its PIX firewall appliance earlier this month, the networking company said Tuesday.

The alleged flaw was discovered by Hendrik Scholz, a developer with Freenet Cityline, who discussed it during Aug. 2 presentation at the Black Hat USA conference in Las Vegas. Freenet is a German VOIP (voice over Internet Protocol) service provider.

Scholz claimed that if someone sent the PIX device a specially crafted SIP (Session Initiation Protocol) message, the firewall would then allow attackers to send traffic to any device on the network. SIP is a protocol used to set up telephone calls and other communication sessions over the Internet.

...

During his Black Hat presentation, the security researcher said that exploiting the flaw was "really easy to do." But in an e-mail interview conducted two weeks ago, Scholtz said that a hacker would first need to know "intimate details" about the network being attacked and have control of a device on the inside in order to pull off the attack.