This article provides information on how to mitigate the CVE-2023-28531 vulnerability.

→ Applies to: SynetoOS 4.x

Vulnerability description

ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.

SOURCES
NIST (https://nvd.nist.gov/vuln/detail/CVE-2023-28531)

Mitigation

This CVE has NO impact on SynetoOS, as the exploitable feature is not present.

Version check

Step 1. Connect to SynetoOS appliance via SSH as admin

ssh admin@<your_ip_address_or_hostname>

Step 2 (optional). Change into Solaris shell (in case you're directed to an unsupported shell)

un sh

Step 3. Get root privileges

sudo su -

Step 4. Display the version of SSH on the system 

ssh -V

EXAMPLE OUTPUT

root@syneto-esxi-s2:/var/storage/support# ssh -V
OpenSSH_8.0p1, OpenSSL 1.1.1d  10 Sep 2019