exploit the possibilities

SunSSH Solaris 10.0 / 11.0 x86 Remote Root

SunSSH Solaris 10.0 / 11.0 x86 Remote Root
Posted Nov 9, 2020
Authored by Hacker Fantastic

A trivial to reach stack-based buffer overflow is present in libpam on Solaris. The vulnerable code exists in pam_framework.c parse_user_name() which allocates a fixed size buffer of 512 bytes on the stack and parses a username supplied to PAM modules (such as authtok_get used by SunSSH). This issue can be reached remotely pre-authentication via SunSSH when "keyboard-interactive" is enabled to use PAM based authentication. The vulnerability was discovered being actively exploited by FireEye in the wild and is part of an APT toolkit called "EVILSUN". The vulnerability is present in both SPARC/x86 versions of Solaris and others (eg. illumos). This exploit uses ROP gadgets to disable nxstack through mprotect on x86 and a helper shellcode stub. Tested against latest Solaris 10 without patch applied and the configuration is vulnerable in a default vanilla install. This exploit requires libssh2, the vulnerability has been identified and confirmed reachable on Solaris 10 through 11.0.

tags | exploit, overflow, x86, shellcode
systems | solaris
advisories | CVE-2020-14871
MD5 | 3fbcd0fdda16b92f50dc244f60276db1
Login or Register to add favorites

File Archive:

December 2020

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Dec 1st
    22 Files
  • 2
    Dec 2nd
    33 Files
  • 3
    Dec 3rd
    16 Files
  • 4
    Dec 4th
    0 Files
  • 5
    Dec 5th
    0 Files
  • 6
    Dec 6th
    0 Files
  • 7
    Dec 7th
    0 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