pwnProeasy
Indexes
spbctf
Task: bypass a secret verification system using array index out-of-bounds. Solution: provide index 2080 to access the flag pointer instead of the user secrets array, causing memcmp to compare the flag with itself (always matches).
$ ls tags/ techniques/
array_index_oobpointer_arithmetic_exploitationmemcmp_self_comparison
🔒
Permission denied (requires tier.pro)
Sign in to access full writeups
Sign in with GitHub to continue. No email required.
$sign in$ grep --similar
Similar writeups
- [pwn][Pro]secret_v2 — format string without %n— spbctf
- [pwn][Pro]sptr— spbctf
- [pwn][Pro]ret— spbctf
- [pwn][Pro]Easy Overflow 3— spbctf
- [pwn][Pro]Easy Overflow 1— spbctf