Borrow Features from pwngdb

[zachriggle]

It looks like pwngdb is yet-another-gdbinit-for-reversing-and-exploit development. They've got a lot of features that we should borrow, which would make good starting points for first-time contributors.

NOTE: pwngdb does not have a MIT-compatible license, so these would need to be clean-room implementations.

Here's a list of the features they claim, some of which we might already have but could implement as aliases:

• libc : Print the base address of libc
• ld : Print the base address of ld
• codebase : Print the base of code segment
• heap : Print the base of heap
• got : Print the Global Offset Table infomation
• dyn : Print the Dynamic section infomation
• findcall : Find some function call
• bcall : Set the breakpoint at some function call
• tls : Print the thread local storage address
• at : Attach by process name
• findsyscall : Find the syscall
• fmtarg : Calculate the index of format string
  • You need to stop on printf which has vulnerability.
• force : Calculate the nb in the house of force.
• heapinfo : Print some infomation of heap
  • heapinfo (Address of arena)
  • default is the arena of current thread
  • If tcache is enable, it would show infomation of tcache entry
• heapinfoall : Print some infomation of heap (all threads)
• arenainfo : Print some infomation of all arena
• chunkinfo: Print the infomation of chunk
  • chunkinfo (Address of victim)
• chunkptr : Print the infomation of chunk
  • chunkptr (Address of user ptr)
• mergeinfo : Print the infomation of merge
  • mergeinfo (Address of victim)
• printfastbin : Print some infomation of fastbin
• tracemalloc on : Trace the malloc and free and detect some error .
  • You need to run the process first than tracemalloc on, it will record all of the malloc and free.
  • You can set the DEBUG in pwngdb.py , than it will print all of the malloc and free infomation such as the screeshot.
• parseheap : Parse heap layout
• magic : Print useful variable and function in glibc
• fp : show FILE structure
  • fp (Address of FILE)
• fpchain: show linked list of FILE
• orange : Test house of orange condition in the _IO_flush_lockp
  • orange (Address of FILE)
  • glibc version <= 2.23

[gsingh93]

pwngdb is actually using pwndbg under the hood. I've invited the author to upstream this functionality to pwndbg: scwuaptx/Pwngdb#47

[gsingh93]

Seems like this issue is a dup of #259