#VU23508 OS Command Injection in libssh - CVE-2019-14889
Published: December 11, 2019
Vulnerability identifier: #VU23508
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-14889
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libssh
libssh
Software vendor:
libssh
libssh
Description
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to incorrect handling of the SCP command parameters when initiating the connection within the ssh_scp_new() function. A remote attacker can trick victim into using a specially crafted SCP command to connect to a remote SCP server and execute arbitrary commands on the target server with privileges of the current user.
Remediation
Install updates from vendor's website.