webPromedium

Wish Constructor

duckerz

Task: PHP file upload with post-save validation (TOCTOU). Solution: Race condition exploit with parallel upload and access threads to execute PHP before unlink().

sqlite docker php race_condition toctou file_upload apache unrestricted_upload

race_condition_file_uploadtoctou_exploitationpredictable_filename_md5concurrent_request_race

$ ls tags/ techniques/

sqlite docker php race_condition toctou file_upload apache unrestricted_upload

race_condition_file_uploadtoctou_exploitationpredictable_filename_md5concurrent_request_race

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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