[German]Since February 13, 2024, a vulnerability CVE-2024-21410 has been known, through which attackers can access NTLM hashes via Microsoft Exchange Server and then misuse them for NTLM relay or pass-the-hash attacks. I have now read that more than 28,500 Exchange servers are vulnerable via CVE-2024-21410. Administrators must therefore take action and secure their IT infrastructure. In this context, I also came across an analysis by Frank Carius, who sees the vulnerability not in the Exchange Server but in the IIS. So there is potentially much more affected.
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Zyxel has released a security patch "ZLD5.37 Patch2" for its ZyWALL ATP, ZyWALL USG FLEX and ZyWALL VPN solutions on February 20, 2024, which closes the vulnerabilities Social networks
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