Twenty Year Anniversary

Binance 1.5.0 Insecure File Permission

Binance 1.5.0 Insecure File Permission
Posted Jul 17, 2018
Authored by ZwX | Site vulnerability-lab.com

Binance version 1.5.0 suffers from an insecure file permission vulnerability.

tags | exploit
MD5 | 23ab79875476d303569e9a725683a7de

Binance 1.5.0 Insecure File Permission

Change Mirror Download
Document Title:
===============
Binance v1.5.0 - Insecure File Permission Vulnerability


References (Source):
====================
https://www.vulnerability-lab.com/get_content.php?id=2135


Release Date:
=============
2018-07-17


Vulnerability Laboratory ID (VL-ID):
====================================
2135


Common Vulnerability Scoring System:
====================================
2.5


Vulnerability Class:
====================
Access Permission Weakness


Current Estimated Price:
========================
500 - 1.000


Abstract Advisory Information:
==============================
An independent vulnerability laboratory researcher discovered an insecure file permission vulnerability in the Binance v1.5.0 software.



Vulnerability Disclosure Timeline:
==================================
2018-07-15: Researcher Notification & Coordination (Security Researcher)
2018-07-17: Public Disclosure (Vulnerability Laboratory)


Discovery Status:
=================
Published


Affected Product(s):
====================
Binance
Product: Binance 1.5.0


Exploitation Technique:
=======================
Local


Severity Level:
===============
Low


Authentication Type:
====================
Full authentication (admin) - full privileges


User Interaction:
=================
Medium User Interaction


Disclosure Type:
================
Independent Security Research


Technical Details & Description:
================================
Insecure File Permissions vulnerability has been discovered in the official Binance v1.5.0 software.
The vulnerability allows local attackers to exploit insecure permissions setup for a software or process to exploit by manipulation.

The vulnerability exists due to insecure default permissions set on the Binance.exe, start.exe and unins000.exe
There are no integrity checks or validation proof to ensure that the executable file is not modified
during the runtime or after it.
A local attacker could exploit the local vulnerability by replacing `Binance.exe` and `start.exe` or `unins000.exe` with a
malicious executable file. The malicious file could execute or modify with the LocalSystem permissions to followup with
successful exploitation.


Proof of Concept (PoC):
=======================
Binance for windows contains a vulnerability that could allow a local attacker to gain elevated privileges.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below.


-- PoC Session Logs (Permissions) --
C:Binance>icacls binance.exe
Binance.exe BUILTINAdministrateurs:(I)(F) <--- Full Access
AUTORITE NTSysteme:(I)(F)
BUILTINUtilisateurs:(I)(RX)
AUTORITE NTUtilisateurs authentifies:(I)(M) <--- Modify

Information: 1 files correctly processed; 0 files failed to process

C:Binance>icacls start.exe
start.exe BUILTINAdministrateurs:(I)(F) <--- Full Access
AUTORITE NTSysteme:(I)(F)
BUILTINUtilisateurs:(I)(RX)
AUTORITE NTUtilisateurs authentifies:(I)(M) <--- Modify

Information: 1 files correctly processed; 0 files failed to process

C:Binance>icacls unins000.exe
unins000.exe BUILTINAdministrateurs:(I)(F) <--- Full Access
AUTORITE NTSysteme:(I)(F)
BUILTINUtilisateurs:(I)(RX)
AUTORITE NTUtilisateurs authentifies:(I)(M) <--- Modify

Information: 1 files correctly processed; 0 files failed to process


Solution - Fix & Patch:
=======================
Include multiple integrity checks for the software files on startup and during the static runtime.
Change the access permissions for the process of all three executables files (binance.exe, stat.exe & uninst00.exe).


Security Risk:
==============
The security risk of the insecure file permissions vulnerability and missing integrity check in the software core is estimated as low.


Credits & Authors:
==================
ZwX [Vulnerability Laboratory - Security Manager] - https://www.vulnerability-lab.com/show.php?user=ZwX


Disclaimer & Information:
=========================
The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties,
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-Lab
or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits
or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do
not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
We do not approve or encourage anybody to break any licenses, policies, deface websites, hack into databases or trade with stolen data.

Domains: www.vulnerability-lab.com www.vuln-lab.com www.vulnerability-db.com
Services: magazine.vulnerability-lab.com paste.vulnerability-db.com infosec.vulnerability-db.com
Social: twitter.com/vuln_lab facebook.com/VulnerabilityLab youtube.com/user/vulnerability0lab
Feeds: vulnerability-lab.com/rss/rss.php vulnerability-lab.com/rss/rss_upcoming.php vulnerability-lab.com/rss/rss_news.php
Programs: vulnerability-lab.com/submit.php vulnerability-lab.com/register.php vulnerability-lab.com/list-of-bug-bounty-programs.php

Any modified copy or reproduction, including partially usages, of this file requires authorization from Vulnerability Laboratory.
Permission to electronically redistribute this alert in its unmodified form is granted. All other rights, including the use of other
media, are reserved by Vulnerability-Lab Research Team or its suppliers. All pictures, texts, advisories, source code, videos and other
information on this website is trademark of vulnerability-lab team & the specific authors or managers. To record, list, modify, use or
edit our material contact (admin@ or research@) to get a ask permission.

Copyright (c) 2018 | Vulnerability Laboratory - [Evolution Security GmbH]


Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

November 2018

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2018 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close