Flaw Found in VPN Crypto Security

peeon writes "CNET reports the British National Infrastructure Security Coordination Centre has discovered a flaw in IPSEC protocol. From the article: 'The flaw, which the NISCC rates as "high" risk, makes it possible for an attacker to intercept IP packets traveling between two IPsec devices. They could then modify the encapsulation security payload--a subprotocol that encrypts the data being transported.'"