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CVE-2020-35684

An issue was discovered in HCC Nichestack 3.0. The code that parses TCP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the length of the TCP p...

Published: Aug 19, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-20
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.3%
Top 19.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-20

Affected Products

n/an/a
NicheLiteHCC Embedded
Embedded
ICS / OT / IoT / medical-device
InterNicheHCC Embedded
Embedded
ICS / OT / IoT / medical-device
nichestackhcc-embedded
Embedded
Operating Systems / rtos-embedded-os
sentron 3wl com35 firmwaresiemens
On-prem
Enterprise Software / collaboration-groupware
hcc embeddedcommercialICS / OT / IoTaka interniche, nichelite
hcc-embeddedcommercialOperating Systemsaka nichestack, interniche, nichestack tcp/ip
siemenscommercialDEEnterprise Softwareaka siemens ag
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-217-01.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-21-217-01
cisa.gov
https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-10-301-01
us-cert.cisa.gov
and 30 more references View all →

Timeline

Published
Aug 19, 2021
Last Updated
Nov 21, 2024

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