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Email-Worm.Win32.Sircam.eb MVID-2021-0070 Insecure Permissions

Email-Worm.Win32.Sircam.eb MVID-2021-0070 Insecure Permissions
Posted Feb 8, 2021
Authored by malvuln | Site malvuln.com

Email-Worm.Win32.Sircam.eb malware suffers from an insecure permissions vulnerability.

tags | exploit, worm
systems | windows
SHA-256 | b9dfc635d0039e0fcdcf8cfc0f97162a15393a0db0cf5cdee41e8fc094c569ab

Email-Worm.Win32.Sircam.eb MVID-2021-0070 Insecure Permissions

Change Mirror Download
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/cd88a9b686acd9ccf23dba8d248129b4.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Email-Worm.Win32.Sircam.eb
Vulnerability: Insecure Permissions EoP
Description: Sircam.eb creates a vuln dir under c:\ drive named "Windupdt" and drops an exe named "winupdate.exe". Grants change (C) permissions to authenticated users group.
Type: PE32
MD5: cd88a9b686acd9ccf23dba8d248129b4
Vuln ID: MVID-2021-0070
Dropped files: winupdate.exe
Disclosure: 02/06/2021

Exploit/PoC:
C:\>cacls \Windupdt
C:\Windupdt 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


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. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).
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