The attack requires the attacker to physically touch or manipulate the vulnerable system. Physical interaction may be brief (e.g., evil maid attack1) or persistent. An example of such an attack is a cold boot attack in which an attacker gains access to disk encryption keys after physically accessing the target system. Other examples include peripheral attacks via FireWire/USB Direct Memory Access (DMA).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
None
PR
The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
Scope
Unchanged
S
An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality
High
C
There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity
High
I
There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability
High
A
There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.
Below is a copy: Trojan-Mailfinder.Win32.VB.p / Insecure Permissions
Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/20e438d84aa2828826d52540d80bf7f.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Trojan-Mailfinder.Win32.VB.p
Vulnerability: Insecure Permissions
Description: The malware writes a dir with multiple PE files to c drive granting change (C) permissions to the authenticated user group. Standard users can rename the executable dropped by the malware to disable it or replace it with their own executable. Then wait for a privileged user to logon to the infected machine to potentially escalate privileges.
Family: VB
Type: PE32
MD5: 20e438d84aa2828826d52540d80bf7fa
Vuln ID: MVID-2022-0616
Disclosure: 06/23/2022
Exploit/PoC:
C:\>cacls IMB
C:\IMB 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
C:\>dir IMB
Volume in drive C has no label.
Directory of C:\IMB
09/12/2003 09:07 PM 140,288 comdlg32.ocx
06/16/2004 01:17 PM 282,624 IMB.exe
09/12/2003 09:07 PM 1,388,544 msvbvm60.dll
09/12/2003 09:07 PM 108,336 MSWINSCK.OCX
09/15/2003 05:16 PM 192 Readme.txt
10/04/2001 12:16 AM 147,483 scrrun.dll
10/04/2001 12:16 AM 17,920 stdole2.tlb
09/12/2003 09:07 PM 2,864 winsock.dll
8 File(s) 2,088,251 bytes
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