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2020 Writeups
Angstrom
Git Good
Secret Agents
windows of opportunity
Califrobnication
Patcherman
Just Rust
No canary
WS3
Confused Streaming
Reasonably Secure Algorithm
Defund's Crypt
Low-kee
Discrete Superlog
Wacko Images
Shifter
Xmas Still Stands
Noisy
Canary
Inputter
clam clam clam
PSK
Taking Off
Consolation
Wooosh
Signal_of_hope
One Time Bad
Revving up
bsidesBOS
Crypto CTF
Covid19 CTF
FWordCTF
Google
Hacktivity Con
Houseplant
HSCTF
NahamConCTF
Plaid
RACTF
Redpwn CTF
rgbCTF
Sharky
TJCTF
Tokyo Westerns CTF
Zh3r0 CTF
2021 Writeups
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Patcherman
Look in hex -
line 01050
-
be ba 0d f0
That spelled backwards is
f00dbabe
Open cutter, go to graph, main
'cmp eax, 0x1337beef'
Convert that to the format it needs
python -c "import pwn; print(pwn.p32(0x1337beef))" | hd - ef be 37 13
Swap that with
f00dbabe
./patcherman
actf{p4tch3rm4n_15_n0_m0r3}
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