CVE-2021-33526

Privilege escalation in mbDIALUP <= 3.9R0.0

Description

In MB connect line mbDIALUP versions <= 3.9R0.0 a low privileged local attacker can send a command to the service running with NT AUTHORITY\SYSTEM instructing it to execute a malicous OpenVPN configuration resulting in arbitrary code execution with the privileges of the service.

Remediation

Solution:

  • Update to version 3.9R0.5

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Third-Party Advisory vde.com
Affected: MB connect line mbDIALUP
Published at:
Updated at:

References

Link Tags
https://cert.vde.com/de-de/advisories/vde-2021-017 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-33526?
CVE-2021-33526 has been scored as a high severity vulnerability.
How to fix CVE-2021-33526?
To fix CVE-2021-33526: Update to version 3.9R0.5
Is CVE-2021-33526 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-33526 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-33526?
CVE-2021-33526 affects MB connect line mbDIALUP.
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