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Vulnerability Details :

CVE-2020-27737

Summary
Assigner-siemens
Assigner Org ID-cec7a2ec-15b4-4faf-bd53-b40f371f3a77
Published At-22 Apr, 2021 | 20:42
Updated At-04 Aug, 2024 | 16:18
Rejected At-
Credits

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS response parsing functionality does not properly validate various length and counts of the records. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the memory past the allocated structure.

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:04 Aug, 2024 | 16:18
Rejected At:
▼CVE Numbering Authority (CNA)

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS response parsing functionality does not properly validate various length and counts of the records. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the memory past the allocated structure.

Affected Products
Vendor
Siemens AGSiemens
Product
APOGEE PXC Compact (BACnet)
Default Status
unknown
Versions
Affected
  • All versions < V3.5.5
Vendor
Siemens AGSiemens
Product
APOGEE PXC Compact (P2 Ethernet)
Default Status
unknown
Versions
Affected
  • All versions < V2.8.20
Vendor
Siemens AGSiemens
Product
APOGEE PXC Modular (BACnet)
Default Status
unknown
Versions
Affected
  • All versions < V3.5.5
Vendor
Siemens AGSiemens
Product
APOGEE PXC Modular (P2 Ethernet)
Default Status
unknown
Versions
Affected
  • All versions < V2.8.20
Vendor
Siemens AGSiemens
Product
Nucleus NET
Default Status
unknown
Versions
Affected
  • All versions
Vendor
Siemens AGSiemens
Product
Nucleus ReadyStart V3
Default Status
unknown
Versions
Affected
  • All versions < V2017.02.3
Vendor
Siemens AGSiemens
Product
Nucleus ReadyStart V4
Default Status
unknown
Versions
Affected
  • All versions < V4.1.0
Vendor
Siemens AGSiemens
Product
Nucleus Source Code
Default Status
unknown
Versions
Affected
  • Versions including affected DNS modules
Vendor
Siemens AGSiemens
Product
SIMOTICS CONNECT 400
Default Status
unknown
Versions
Affected
  • All versions < V0.5.0.0
Vendor
Siemens AGSiemens
Product
TALON TC Compact (BACnet)
Default Status
unknown
Versions
Affected
  • All versions < V3.5.5
Vendor
Siemens AGSiemens
Product
TALON TC Modular (BACnet)
Default Status
unknown
Versions
Affected
  • All versions < V3.5.5
Problem Types
TypeCWE IDDescription
CWECWE-125CWE-125: Out-of-bounds Read
Type: CWE
CWE ID: CWE-125
Description: CWE-125: Out-of-bounds Read
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C
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-705111.pdf
N/A
https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf
N/A
https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf
N/A
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf
Resource: N/A
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf
Resource: N/A
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf
Resource: N/A
▼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-705111.pdf
x_transferred
https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf
x_transferred
https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf
x_transferred
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf
Resource:
x_transferred
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf
Resource:
x_transferred
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf
Resource:
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:08 Aug, 2023 | 10:15

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS response parsing functionality does not properly validate various length and counts of the records. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the memory past the allocated structure.

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
Primary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
Secondary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
Primary2.05.8MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:P
Type: Primary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
Type: Primary
Version: 2.0
Base score: 5.8
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:N/A:P
CPE Matches
Siemens AG
siemens
>>simotics_connect_400_firmware>>Versions before 0.5.0.0(exclusive)
cpe:2.3:o:siemens:simotics_connect_400_firmware:*:*:*:*:*:*:*:*
Siemens AG
siemens
>>simotics_connect_400>>-
cpe:2.3:h:siemens:simotics_connect_400:-:*:*:*:*:*:*:*
Siemens AG
siemens
>>nucleus_net>>*
cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:*
Siemens AG
siemens
>>nucleus_readystart_v3>>Versions before 2017.02.3(exclusive)
cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:*
Siemens AG
siemens
>>nucleus_readystart_v4>>Versions before 4.1.0(exclusive)
cpe:2.3:a:siemens:nucleus_readystart_v4:*:*:*:*:*:*:*:*
Siemens AG
siemens
>>nucleus_source_code>>-
cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-125Primarynvd@nist.gov
CWE-125Secondaryproductcert@siemens.com
CWE ID: CWE-125
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-125
Type: Secondary
Source: productcert@siemens.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdfproductcert@siemens.com
N/A
https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdfproductcert@siemens.com
Patch
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdfproductcert@siemens.com
Patch
Vendor Advisory
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf
Source: productcert@siemens.com
Resource: N/A
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf
Source: productcert@siemens.com
Resource:
Patch
Vendor Advisory
Hyperlink: https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf
Source: productcert@siemens.com
Resource:
Patch
Vendor Advisory

Change History

0
Information is not available yet

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