praetorian-inc / dvrf Goto Github PK

Could you give the exp for the heapoverflow vuln, I only know it may be exploited by unlink~~

https://github.com/praetorian-inc/DVRF/blob/master/Pwnable%20Source/Intro/heap_overflow_01.c

Hello! Thanks for your anwser last time. This time when i enter a lot of 'A' at the stack_bof_01 beside chroot, the (gdb) c shows "The program is not being run." And when i entered (gdb) file, it shows "No executable file now. No symbol file now." What wrong with my gdb lol.

https://github.com/b1ack0wl/DVRF

package/xboard/xboard.mk:14: *** missing separator (did you mean TAB instead of 8 spaces?). Stop.

@b1ack0wl

Hello! i'm learning about CPU architectures outside of the x86_64 space by your DVRF project. But when the step i used Binwalk to extract DVRF_v03.bin it's become three WARNING says : No such file or directory,"unsquashfs","sasquatch" might not be installed correctly.

Is this normal?

hello , i am a beginner and i take problem now.
wheater can i install the DVRF_v03 by QEMU ??
for when i binwalk -eM DVRF_v03.bin and there is only a piggy file in the folder, ( i referto the link you given ：https://www.praetorian.com/blog/getting-started-with-damn-vulnerable-router-firmware-dvrf-v0.1） and there is somewhere different

Thankyou

I install almost everything recommended, buildroot, binwalk, gdb-multiarch, pwndbg, pwntools, qemu and maybe something more. And my commands are that:
`ubuntu@ubuntu:~/Desktop/DVRF/_DVRF_v03.bin.extracted/squashfs-root$ ./qemu-mipsel-static -L ./ -g 1234 ./pwnable/Intro/stack_bof_01
Usage: stack_bof_01
-By b1ack0wl

sudo chroot . ./qemu-mipsel-static -g 1234 ./pwnable/Intro/stack_bof_01

ubuntu@ubuntu:~/Desktop/DVRF/_DVRF_v03.bin.extracted/squashfs-root$ gdb-multiarch pwnable/Intro/stack_bof_01
(gdb) set architecture mips
(gdb) target remote 127.0.0.1:1234
(gdb) c
(gdb) disass main
`

The results are:
warning: remote target does not support file transfer, attempting to access files from local filesystem. Reading symbols from /home/ubuntu/Desktop/DVRF/_DVRF_v03.bin.extracted/squashfs-root/lib/ld-uClibc.so.0...(no debugging symbols found)...done. 0x7f7b9a80 in _start () from /home/ubuntu/Desktop/DVRF/_DVRF_v03.bin.extracted/squashfs-root/lib/ld-uClibc.so.0 (gdb) c Continuing. [Inferior 1 (Remote target) exited with code 01]
Actually there is an warning and exited, which means that gdb can not attach the "DVRF" process, and I do not know what to do more. Since the blog is no longer exist, could you please tell me sth about it? Thx very much!

Hello! For my tasks i want to make this firmware for different platforms. First of all i have got a trouble compiling it using toolchain attached to the project. Here is log file:

DVRF_makefile_output.txt

I've tried using latest Debian OS and Fedora 11 and the problem is the same