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Vulnerability Details :

CVE-2021-27393

Summary
Assigner-siemens
Assigner Org ID-cec7a2ec-15b4-4faf-bd53-b40f371f3a77
Published At-22 Apr, 2021 | 20:42
Updated At-03 Aug, 2024 | 20:48
Rejected At-
Credits

A vulnerability has been identified in Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2013.08), Nucleus Source Code (Versions including affected DNS modules). The DNS client does not properly randomize UDP port numbers of DNS requests. That could allow an attacker to poison the DNS cache or spoof DNS resolving.

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:siemens
Assigner Org ID:cec7a2ec-15b4-4faf-bd53-b40f371f3a77
Published At:22 Apr, 2021 | 20:42
Updated At:03 Aug, 2024 | 20:48
Rejected At:
▼CVE Numbering Authority (CNA)

A vulnerability has been identified in Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2013.08), Nucleus Source Code (Versions including affected DNS modules). The DNS client does not properly randomize UDP port numbers of DNS requests. That could allow an attacker to poison the DNS cache or spoof DNS resolving.

Affected Products
Vendor
Siemens AGSiemens
Product
Nucleus NET
Versions
Affected
  • All versions
Vendor
Siemens AGSiemens
Product
Nucleus ReadyStart V3
Versions
Affected
  • All versions < V2013.08
Vendor
Siemens AGSiemens
Product
Nucleus Source Code
Versions
Affected
  • Versions including affected DNS modules
Problem Types
TypeCWE IDDescription
CWECWE-330CWE-330: Use of Insufficiently Random Values
Type: CWE
CWE ID: CWE-330
Description: CWE-330: Use of Insufficiently Random Values
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-portal.siemens.com/productcert/pdf/ssa-201384.pdf
x_refsource_MISC
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-201384.pdf
Resource:
x_refsource_MISC
▼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-portal.siemens.com/productcert/pdf/ssa-201384.pdf
x_refsource_MISC
x_transferred
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-201384.pdf
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:productcert@siemens.com
Published At:22 Apr, 2021 | 21:15
Updated At:22 Apr, 2022 | 19:38

A vulnerability has been identified in Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2013.08), Nucleus Source Code (Versions including affected DNS modules). The DNS client does not properly randomize UDP port numbers of DNS requests. That could allow an attacker to poison the DNS cache or spoof DNS resolving.

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
Primary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Primary2.05.0MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N
Type: Primary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Type: Primary
Version: 2.0
Base score: 5.0
Base severity: MEDIUM
Vector:
AV:N/AC:L/Au:N/C:N/I:P/A:N
CPE Matches
Siemens AG
siemens
>>nucleus_net>>*
cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:*
Siemens AG
siemens
>>nucleus_readystart_v3>>Versions before 2013.08(exclusive)
cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:*
Siemens AG
siemens
>>nucleus_source_code>>-
cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-330Primaryproductcert@siemens.com
CWE-330Secondarynvd@nist.gov
CWE ID: CWE-330
Type: Primary
Source: productcert@siemens.com
CWE ID: CWE-330
Type: Secondary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://cert-portal.siemens.com/productcert/pdf/ssa-201384.pdfproductcert@siemens.com
Vendor Advisory
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-201384.pdf
Source: productcert@siemens.com
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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