Multiple series of network switches manufactured by Aruba Networks, owned by Hewlett Packard Enterprise, and Avaya, owned by Extreme Networks, are vulnerable to attacks that could allow attackers to break network segmentation, exfiltrate data from internal networks to the internet, and escape captive portals. The flaws stem from mistakes made by the vendors when implementing a popular embedded TLS library.
The vulnerabilities are rated critical and can lead to remote code execution (RCE), according to researchers from security firm Armis who found them. These flaws, collectively dubbed TLStorm 2.0, could enable attackers to take full control, often without authentication, of switches that are deployed in a wide variety of enterprise networks and are also used to isolate public-facing network segments in airports, hospitals, hotels and other organizations.
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