Hi Kingcope, # As seen below $edx and $edi are fully controlled, # the current instruction is # => 0x83a6b24 <free_root+180>: mov (%edx),%edi # this means we landed in a place where 4 bytes can be controlled by 4 bytes # with this function pointers and GOT entries can be rewritten to execute arbritrary code
Out of curiosity, is this exploitable when using hardened toolchain settings? Specifically, -z,noexecheap, -z,now, and -z,relro? For no-exec heaps., you need to be on Gentoo or other platforms which offer the remediation. Jeff On Sat, Dec 1, 2012 at 4:26 PM, king cope <isowarez.isowarez.isowa...@googlemail.com> wrote: > (see attachment) > > Cheerio, > > Kingcope > > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.grok.org.uk/full-disclosure-charter.html > Hosted and sponsored by Secunia - http://secunia.com/
