0day.today - Biggest Exploit Database in the World.
- We use one main domain: http://0day.today
- Most of the materials is completely FREE
- If you want to purchase the exploit / get V.I.P. access or pay for any other service,
you need to buy or earn
GOLD
Administration of this site uses the official contacts. Beware of impostors!
We DO NOT use Telegram or any messengers / social networks!Please, beware of scammers!
- Read the [ agreement ]
- Read the [ Submit ] rules
- Visit the [ faq ] page
- [ Register ] profile
- Get [ GOLD ]
- If you want to [ sell ]
- If you want to [ buy ]
- If you lost [ Account ]
- Any questions [ admin@0day.today ]
- Authorisation page
- Registration page
- Restore account page
- FAQ page
- Contacts page
- Publishing rules
- Agreement page
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Contact us
You can contact us by:
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Armadito Antivirus 0.12.7.2 - Detection Bypass Vulnerability
Author
Risk
[Security Risk High
]0day-ID
Category
Date add
CVE
Platform
/*
Title: Armadito Antivirus - Malware Detection Bypass
Date: 21/02/2018
Author: Souhail Hammou
Author's website: http://rce4fun.blogspot.com
Vendor Homepage: http://www.teclib-edition.com/en/
Version: 0.12.7.2
CVE: CVE-2018-7289
Details:
--------
An issue was discovered in armadito-windows-driver/src/communication.c affecting Armadito 0.12.7.2 and previous versions.
Malware with filenames containing pure UTF-16 characters can bypass detection.
The user-mode service will fail to open the file for scanning after the conversion is done from Unicode to ANSI.
This happens because characters that cannot be converted from Unicode are replaced with the '?' character.
The code responsible for this issue is located in armadito-windows-driver/src/communication.c
========================================================================================================
// Convert unicode string to ansi string for ring 3 process.
ntStatus = RtlUnicodeStringToAnsiString(&AnsiString, (PCUNICODE_STRING)FilePath, TRUE);
if(!NT_SUCCESS(ntStatus)){
DbgPrint("[-] Error :: ArmaditoGuard!SendScanOrder :: RtlUnicodeStringToAnsiString() routine failed !! \n");
__leave;
}
========================================================================================================
The two examples below demonstrate the bug.
In the first case, the filename is in Arabic and in the second, the filename's first letter is the greek M (U+039C).
Original filename:
مرحبا.exe : 0645 0631 062d 0628 0627 002e 0065 0078 0065
Converted to ANSI by Armadito:
?????.exe : 3f 3f 3f 3f 3f 2e 65 78 65
=============================
Original filename:
Μalware.exe : 039c 0061 006c 0077 0061 0072 0065 002e 0065 0078 0065
Converted to ANSI by Armadito:
?alware.exe : 3f 61 6c 77 61 72 65 2e 65 78 65
See: https://github.com/armadito/armadito-windows-driver/issues/5
*/
# 0day.today [2024-12-27] #