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Vulnerability Details :

CVE-2021-33526

Summary
Assigner-CERTVDE
Assigner Org ID-270ccfa6-a436-4e77-922e-914ec3a9685c
Published At-02 Aug, 2021 | 10:24
Updated At-17 Sep, 2024 | 01:56
Rejected At-
Credits

Privilege escalation in mbDIALUP <= 3.9R0.0

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:CERTVDE
Assigner Org ID:270ccfa6-a436-4e77-922e-914ec3a9685c
Published At:02 Aug, 2021 | 10:24
Updated At:17 Sep, 2024 | 01:56
Rejected At:
▼CVE Numbering Authority (CNA)
Privilege escalation in mbDIALUP <= 3.9R0.0

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.

Affected Products
Vendor
MB connect line
Product
mbDIALUP
Versions
Affected
  • From 3.9R0.0 through 3.9R0.0 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-269CWE-269 Improper Privilege Management
Type: CWE
CWE ID: CWE-269
Description: CWE-269 Improper Privilege Management
Metrics
VersionBase scoreBase severityVector
3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Update to version 3.9R0.5

Configurations
Workarounds
Exploits
Credits
Noam Moshe of Claroty reported this vulnerability to MB connect line GmbH. CERT@VDE coordinated.
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://cert.vde.com/de-de/advisories/vde-2021-017
x_refsource_CONFIRM
Hyperlink: https://cert.vde.com/de-de/advisories/vde-2021-017
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://cert.vde.com/de-de/advisories/vde-2021-017
x_refsource_CONFIRM
x_transferred
Hyperlink: https://cert.vde.com/de-de/advisories/vde-2021-017
Resource:
x_refsource_CONFIRM
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:info@cert.vde.com
Published At:02 Aug, 2021 | 11:15
Updated At:10 Aug, 2021 | 17:36

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Secondary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary2.07.2HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
Type: Primary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 7.2
Base severity: HIGH
Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
CPE Matches
mbconnectline
mbconnectline
>>mbdialup>>Versions up to 3.9r0.0(inclusive)
cpe:2.3:a:mbconnectline:mbdialup:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-269Primarynvd@nist.gov
CWE-269Secondaryinfo@cert.vde.com
CWE ID: CWE-269
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-269
Type: Secondary
Source: info@cert.vde.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://cert.vde.com/de-de/advisories/vde-2021-017info@cert.vde.com
Third Party Advisory
Hyperlink: https://cert.vde.com/de-de/advisories/vde-2021-017
Source: info@cert.vde.com
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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