Fortra (formerly, HelpSystems) GoAnywhere MFT suffers from a pre-authentication command injection vulnerability in the License Response Servlet due to deserializing an arbitrary attacker-controlled object. This issue was patched in version 7.1.2.
https://www.offsec.com/offsec/cyber-range-xz/
https://securityaffairs.com/157993/hacking/fortra-goanywhere-mft-critical-flaw.html
https://www.rapid7.com/blog/post/2023/02/03/exploitation-of-goanywhere-mft-zero-day-vulnerability/
https://my.goanywhere.com/webclient/ViewSecurityAdvisories.xhtml#zerodayfeb1
https://infosec.exchange/@briankrebs/109795710941843934
https://github.com/rapid7/metasploit-framework/pull/17607
https://duo.com/decipher/fortra-patches-actively-exploited-zero-day-in-goanywhere-mft