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Sophos Endpoint Protection Control Panel 10.7 - Weak Password Encryption
来源:hyp3rlinx.altervista.org 作者:hyp3rlinx 发布时间:2018-04-08  
[+] Credits: John Page (aka hyp3rlinx)     
[+] Website: hyp3rlinx.altervista.org
[+] Source:  http://hyp3rlinx.altervista.org/advisories/SOPHOS-ENDPOINT-PROTECTION-CONTROL-PANEL-v10.7-INSECURE-CRYPTO-CVE-2018-9233.txt
[+] ISR: Apparition Security           
 
 
 
Vendor:
==========
www.sophos.com
 
 
 
Product:
===========
Sophos Endpoint Protection - Control Panel v10.7
 
Sophos Endpoint Protection helps secure your workstation by adding prevention, detection, and response technology on top of your operating system.
Sophos Endpoint Protection is designed for workstations running Windows and macOS. It adds exploit technique mitigations, CryptoGuard anti-ransomware,
anti-malware, web security, malicious traffic detection, and deep system cleanup.
 
 
 
Vulnerability Type:
===================
Insecure Crypto
 
 
 
CVE Reference:
==============
CVE-2018-9233
 
 
 
Security Issue:
================
Sophos endpoint protection control panel authentication uses weak unsalted unicoded cryptographic hash (SHA1) function, not using salt allows attackers that gain access to hash
ability to conduct faster cracking attacks using pre-computed dictionaries, e.g. rainbow tables. This can potentially result in unauthorized access that could allow for
changing of settings, whitelist or unquarantine files.
 
Password and config for Sophos endpoint protection control panel is stored here:
C:\ProgramData\Sophos\Sophos Anti-Virus\Config\machine.xml
 
e.g.
 
SHA1 (Unicode) encoding non salted pass = abc123
 
<TamperProtectionManagement><settings>
<enabled>true</enabled><password>689307D2FC53AF0FB941BC1BB42737CE4F3EF540</password></settings>
</TamperProtectionManagement>
 
 
Using PHP's sha1 function with "mb_convert_encoding" as UTF-16LE we can verify.
 
C:\>php -r "print sha1(mb_convert_encoding('abc123', 'UTF-16LE', 'UTF-8'));"
689307d2fc53af0fb941bc1bb42737ce4f3ef540
 
 
 
Network Access:
===============
Local
 
 
 
Severity:
=========
Low
 
 
Disclosure Timeline:
=============================
Vendor Notification: December 4, 2017
Vendor Acknowledgement: December 12, 2017
Vendor request additional time before disclosing.
additional time has passed.
April 4, 2018  : Public Disclosure
 
 
 
[+] Disclaimer
The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
or exploits by the author or elsewhere. All content (c).
 
hyp3rlinx
 
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