SANS finds published php2shell exploits unreliable outside lab setups
Working demos need an 8 MB memory limit, one prefork worker and on-box library offsets, and commands are capped at 14 bytes.
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Working demos need an 8 MB memory limit, one prefork worker and on-box library offsets, and commands are capped at 14 bytes.

Only apps that switch the session serialize handler at runtime and leave upload progress on are exposed; no attacks on this bug are reported.

No attacks are reported, PHP offered no workaround, and disabling upload progress is not a full fix.
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