CVE-1999-1150

Summary

CVE-1999-1150 is a vulnerability affecting Livingston Portmaster routers that run ComOS. The issue involves the use of the same initial sequence number (ISN) for TCP connections. This weakness allows remote attackers to perform TCP session spoofing and hijacking. By manipulating the ISN, an adversary can intercept data intended for another device on the network, potentially resulting in unauthorized access or data theft. This vulnerability highlights the importance of implementing unique and secure ISNs for each TCP connection to prevent such attacks.

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