For Ubuntu 16:

64 bit: libc-2.23.so

32 bit: libc-2.23.so


For Ubuntu 18:

64 bit: libc-2.27.so

32 bit: libc-2.27.so


For Ubuntu 19:

64 bit: libc-2.29.so

32 bit: libc-2.29.so


For Ubuntu 20:

64 bit: libc-2.30.so

32 bit: libc-2.30.so


FOR ARM:

libc-2.24.so

ld-2.24.so


Windows 版本:

Windows Server 2016 Datacenter 14393.3808


Real 类环境仅供学习,flag 不是最终目的。当然你硬要拿 flag 的话就到环境变量里看看吧。

Real Category Challenge only for study, You may find the flag at the environmental variable.