what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

atermBad.txt

atermBad.txt
Posted Jul 14, 2004
Authored by Maarten Tielemans

Aterm version 0.4.2 has a tty permission weakness that allows the world to write to a terminal.

tags | advisory
SHA-256 | f60187f4e1ea1f4d37e926cb178bb4659cd176a856814c8fbdfc5c6d8186f4ec

atermBad.txt

Change Mirror Download


Aterm has an issue with creating a terminal.



A quick ‘ls –al’ on a aterm with ‘mesg y’ shows:

crw--w--w- 1 alsdk users 5, 3 Jul 13 17:27 /dev/ttyp3

with ‘mesg n’:

crw-----w- 1 alsdk users 5, 3 Jul 13 17:28 /dev/ttyp3



1) World (nobody) is able to ‘echo’ or ‘cat’ towards the terminal

echo “hello” >> /dev/ttyp3

cat mkdir >> /dev/ttyp3

2) The group seems to be incorrect, a normal terminal has default group tty



A xterm with ‘mesg y’ shows :

crw--w---- 1 ttielu tty 5, 5 Jul 13 17:27 ttyp5

and with ‘mesg n’ :

crw------- 1 ttielu tty 5, 5 Jul 13 17:27 ttyp5



Advice: use xterm



Bug found by TTIelu, reverse engineered by alsdk and TTIelu
Login or Register to add favorites

File Archive:

July 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jul 1st
    27 Files
  • 2
    Jul 2nd
    10 Files
  • 3
    Jul 3rd
    35 Files
  • 4
    Jul 4th
    27 Files
  • 5
    Jul 5th
    18 Files
  • 6
    Jul 6th
    0 Files
  • 7
    Jul 7th
    0 Files
  • 8
    Jul 8th
    28 Files
  • 9
    Jul 9th
    44 Files
  • 10
    Jul 10th
    24 Files
  • 11
    Jul 11th
    25 Files
  • 12
    Jul 12th
    11 Files
  • 13
    Jul 13th
    0 Files
  • 14
    Jul 14th
    0 Files
  • 15
    Jul 15th
    0 Files
  • 16
    Jul 16th
    0 Files
  • 17
    Jul 17th
    0 Files
  • 18
    Jul 18th
    0 Files
  • 19
    Jul 19th
    0 Files
  • 20
    Jul 20th
    0 Files
  • 21
    Jul 21st
    0 Files
  • 22
    Jul 22nd
    0 Files
  • 23
    Jul 23rd
    0 Files
  • 24
    Jul 24th
    0 Files
  • 25
    Jul 25th
    0 Files
  • 26
    Jul 26th
    0 Files
  • 27
    Jul 27th
    0 Files
  • 28
    Jul 28th
    0 Files
  • 29
    Jul 29th
    0 Files
  • 30
    Jul 30th
    0 Files
  • 31
    Jul 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close