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Trojan.Win32.Cospet.abg / Insecure Permissions EoP

CVE Category Price Severity
CWE-269 Unknown High
Author Risk Exploitation Type Date
Unknown High Local 2021-02-07
CPE
cpe:cpe:/a:exploitalert:trojan-win32-cospet-abg-insecure-permissions-eop
CVSS EPSS EPSSP
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021020021

Below is a copy:

Trojan.Win32.Cospet.abg / Insecure Permissions EoP
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/5f5b308853b9aa9243390c135ff6ba1b.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Trojan.Win32.Cospet.abg
Vulnerability: Insecure Permissions EoP 
Description: Cospet.abg, creates an vulnerable dir named "dir" under c:\ drive granting change (C) permissions to the authenticated users group. Sends SYN packet to TCP port 2185.
Type: PE32
MD5: 5f5b308853b9aa9243390c135ff6ba1b
Vuln ID: MVID-2021-0069
Dropped files: Lsas.exe
Disclosure: 02/06/2021 

Exploit/PoC:
C:\>cacls \dir
C:\dir BUILTIN\Administrators:(OI)(CI)(ID)F
       NT AUTHORITY\SYSTEM:(OI)(CI)(ID)F
       BUILTIN\Users:(OI)(CI)(ID)R
       NT AUTHORITY\Authenticated Users:(ID)C
       NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(ID)C


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