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The winner of the stealmybitcoin[.]com exploit challenge has a remarkably good writeup on the #PHP2Shell exploit process. The PoC clearly explains what's involved in targeting and calibration for any given PHP version/deployment.

github.comGitHub - KillaBoi/StealMyBitcoin-PoC: A public release of the Steal My Bitcoin challengeA public release of the Steal My Bitcoin challenge - KillaBoi/StealMyBitcoin-PoC

Taggart

@taggart-tech.com

What this tells us is exploitation requires knowledge of: 1. PHP version 2. Reasonable address spaces for the heap 3. PHP worker count 4. Exact offsets for all of the above Blind attacks are highly likely to fail unless allowed to continue for some time.

26/10/26, 1:06 pm1 repost4 likes

Taggart

@taggart-tech.com

Oh yeah and this is all mod_php. None of this works the same way against PHP-FPM.