CVE-2023-43618 Croc requires senders to provide local IP addresses in cleartext

What is CVE-2023-43618?

CVE-2023-43618 is a medium-severity vulnerability in n/a, published on 20 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Croc through 9.6.5. The protocol requires a sender to provide its local IP addresses in cleartext via an ips? message.

Weakness: CWE-311

Which versions are affected by CVE-2023-43618?

6 open source packages ship an affected version, including github.com/schollz/croc/v9, github.com/schollz/croc and github.com/schollz/croc/v6. It affects 1 product.

Products include Schollz Croc.

How do I fix CVE-2023-43618?

Upgrade github.com/schollz/croc/v9 to 9.6.16 or later.

Is CVE-2023-43618 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43618 exists.

Other vulnerabilities in n/a

• CVE-2023-43619 Croc sender may send dangerous new files to receiver High 7.8
• CVE-2023-43620 Croc sender may place ANSI or CSI escape sequences in filename to attach receiver's terminal device High 7.8
• CVE-2023-43616 Sender can cause a receiver to overwrite files during ZIP extraction in Croc Medium 5.5
• CVE-2023-43617 Cros secrets may be disclosed to untrusted relay Medium 5.3
• CVE-2023-43621 Croc may expose secret to local users Medium 4.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CLEANSTART-2024-FA11373, GHSA-7mp6-929p-pqhj, GO-2023-2070.