CVE-2023-43621 Croc may expose secret to local users

What is CVE-2023-43621?

CVE-2023-43621 is a medium-severity vulnerability in n/a, published on 20 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in Croc through 9.6.5. The shared secret, located on a command line, can be read by local users who list all processes and their arguments.

Which versions are affected by CVE-2023-43621?

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-2023-43621?

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

Is CVE-2023-43621 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43621 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-2023-43618 Croc requires senders to provide local IP addresses in cleartext Medium 5.3

Sources

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

Also known as CLEANSTART-2024-EW13747, GHSA-7g3v-4ggr-xvjf, GO-2023-2069.