Remote user enumeration in mymbCONNECT24, mbCONNECT24 <= 2.9.0
CVE-2021-34580

7.5HIGH

Key Information:

Vendor

Mb Connect Line

Status
Mymbconnect24
Mbconnect24
Vendor
CVE Published:
27 October 2021

What is CVE-2021-34580?

In mymbCONNECT24, mbCONNECT24 <= 2.9.0 an unauthenticated user can enumerate valid backend users by checking what kind of response the server sends for crafted invalid login attempts.

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Affected Version(s)

mbCONNECT24 2.9.0

mymbCONNECT24 2.9.0

References

https://cert.vde.com/en/advisories/VDE-2021-037/
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

LEWA Attendorn GmbH reported the vulnerability to MB connect line. CERT@VDE coordinated.
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