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CVE-2020-27009

Published: Apr 22, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-823
8.1HIGH
NVD MITRE
EPSS Score
7.2%
Top 6.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

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 < V5.2), Nucleus Source Code (Versions including affected DNS modules), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS domain name record decompression functionality does not properly validate the pointer offset values. The parsing of malformed responses could result in a write past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to execute code in the context of the current process or cause a denial-of-service condition.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-823CWE-787

Affected Products

Siemens AG
commercial·DEaka siemens
Nucleus NET
ICS / OT / IoT
Nucleus Source Code
ICS / OT / IoT
Nucleus RTOS
ICS / OT / IoT
VSTAR
ICS / OT / IoT
APOGEE PXC Compact (BACnet)
ICS / OT / IoT
APOGEE PXC Compact (P2 Ethernet)
ICS / OT / IoT
APOGEE PXC Modular (BACnet)
ICS / OT / IoT
APOGEE PXC Modular (P2 Ethernet)
ICS / OT / IoT
and 6 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-185699.pdf
cert-portal.siemens.com
https://www.securitylab.ru/news/518760.php&#13;
securitylab.ru
and 14 more references View all →

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