In MobaXterm 11.1, the mobaxterm: URI handler has an argument injection vulnerability that allows remote attackers to execute arbitrary commands when the user visits a specially crafted URL. Based on the available command-line arguments of the software, one can simply inject -exec to execute arbitrary commands. The additional arguments -hideterm and -exitwhendone in the payload make the attack less visible.

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-13475
• https://www.vulnerability-lab.com/get_content.php?id=2186