This indicates an attack attempt to exploit an Expression Language Injection Vulnerability in VMware Cloud Director.
This vulnerability is due to insufficient handling of HTTP request. Successful exploitation results in the execution of arbitrary code on the target system.
VMware Cloud Director 10.0.x prior to 10.0.0.2
VMware Cloud Director 9.7.0.x prior to 22.214.171.124
VMware Cloud Director 9.5.0.x prior to 126.96.36.199
VMware Cloud Director 9.1.0.x prior to 188.8.131.52
System Compromise: Remote attackers can gain control of vulnerable systems.
Applied latest upgrade or patch from the vendor: