Google Chrome to block port 554 to stop NAT Slipstreaming attacks
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01:21 PM
Google Chrome will block the browser s access to TCP port 554 to protect against attacks using the NAT Slipstreaming 2.0 vulnerability.
Last year, security researchers disclosed a new version of the NAT Slipstreaming vulnerability that allows malicious scripts to bypass a website visitor s NAT firewall and access any TCP/UDP port on the visitor s internal network.
Illustration of the NAT Slipstreaming 2.0 attack
As this vulnerability only works on specific ports monitored by a router s Application Level Gateway (ALG), browser developers, including Google, Safari, and Mozilla, have been blocking vulnerable ports that do not receive a lot of traffic.
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