CVE-2021-33527: OS Command Injection in mbDIALUP <= 3.9R0.0
First published: Fri Jul 23 2021(Updated: )
In MB connect line mbDIALUP versions <= 3.9R0.0 a remote attacker can send a specifically crafted HTTP request to the service running with NT AUTHORITY\SYSTEM that will not correctly validate the input. This can lead to an arbitrary code execution with the privileges of the service.
Credit: info@cert.vde.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mbconnectline Mbdialup | <=3.9r0.0 |
Remedy
Update to version 3.9R0.5
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-33527?
The severity of CVE-2021-33527 is critical with a CVSS score of 9.8.
How does CVE-2021-33527 impact MB connect line mbDIALUP?
CVE-2021-33527 allows a remote attacker to execute arbitrary code with the privileges of the service in MB connect line mbDIALUP versions <= 3.9R0.0.
How can an attacker exploit CVE-2021-33527?
An attacker can exploit CVE-2021-33527 by sending a specifically crafted HTTP request to the service running with NT AUTHORITY\SYSTEM.
What is the affected software for CVE-2021-33527?
The affected software for CVE-2021-33527 is mbDIALUP versions <= 3.9R0.0 in the MB connect line.
Is there a fix available for CVE-2021-33527?
Yes, updating MB connect line mbDIALUP to a version higher than 3.9R0.0 will resolve the vulnerability.
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