CVE-2024-35175

sshpiper's Enabling of Proxy Protocol without proper feature flagging allows faking source address

Description

sshpiper is a reverse proxy for sshd. Starting in version 1.0.50 and prior to version 1.3.0, the way the proxy protocol listener is implemented in sshpiper can allow an attacker to forge their connecting address. Commit 2ddd69876a1e1119059debc59fe869cb4e754430 added the proxy protocol listener as the only listener in sshpiper, with no option to toggle this functionality off. This means that any connection that sshpiper is directly (or in some cases indirectly) exposed to can use proxy protocol to forge its source address. Any users of sshpiper who need logs from it for whitelisting/rate limiting/security investigations could have them become much less useful if an attacker is sending a spoofed source address. Version 1.3.0 contains a patch for the issue.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: tg123 sshpiper
Published at:
Updated at:

References

Link Tags
https://github.com/tg123/sshpiper/security/advisories/GHSA-4w53-6jvp-gg52
https://github.com/tg123/sshpiper/commit/2ddd69876a1e1119059debc59fe869cb4e754430
https://github.com/tg123/sshpiper/commit/70fb830dca26bea7ced772ce5d834a3e88ae7f53

Frequently Asked Questions

What is the severity of CVE-2024-35175?
CVE-2024-35175 has been scored as a medium severity vulnerability.
How to fix CVE-2024-35175?
To fix CVE-2024-35175, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-35175 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-35175 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-35175?
CVE-2024-35175 affects tg123 sshpiper.
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