Legacy Windows Protocols Still Expose Networks to Credential Theft
Legacy Windows communication protocols continue to expose organizations to credential theft, even without exploiting software vulnerabilities, a new cybersecurity study by Resecurity found.
The research warned that attackers can capture login data simply by being on the same local network as their targets, using protocols such as Link-Local Multicast Name Resolution (LLMNR) and NetBIOS Name Service (NBT-NS).
These protocols trust any device that responds to their requests – an oversight that allows attackers to impersonate legitimate systems.
- LLMNR and NBT-NS were designed to help Windows systems find other devices when DNS lookups fail.
- Attackers can use tools such as Responder to intercept broadcasts and trick a victim machine into sending authentication data.
Author's summary: Legacy Windows protocols expose organizations to credential theft.
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