CVE-2024-35175

Summary

CVE-2024-35175 is a vulnerability affecting sshpiper, a reverse proxy for sshd. In versions prior to 1.3.0, the implementation of the proxy protocol listener allows an attacker to forge their connecting address. This issue was introduced in commit 2ddd69876a1e1119059debc59fe869cb4e754430, which made the proxy protocol listener the only listener in sshpiper without an option to disable it. As a result, any connection that directly or indirectly reaches sshpiper can use proxy protocol to spoof its source address. This can render logs from sshpiper less effective for whitelisting, rate limiting, and security investigations. Version 1.3.0 includes a patch to address this vulnerability.

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