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CVE-2020-35683

Published: Aug 19, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-125
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.3%
Top 19.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An issue was discovered in HCC Nichestack 3.0. The code that parses ICMP packets relies on an unchecked value of the IP payload size (extracted from the IP header) to compute the ICMP checksum. When the IP payload size is set to be smaller than the size of the IP header, the ICMP checksum computation function may read out of bounds, causing a Denial-of-Service.

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-125

Affected Products

NicheLiteHCC Embedded
Embedded
ICS / OT / IoT / medical-device
InterNicheHCC Embedded
Embedded
ICS / OT / IoT / medical-device
n/an/a
nichestackhcc-embedded
Embedded
Operating Systems / rtos-embedded-os
7km9300-0ae02-0aa0 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

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://www.cybersecurity-help.cz/vdb/SB2021080607
cybersecurity-help.cz
https://us-cert.cisa.gov/ics/advisories/icsa-21-217-01
us-cert.cisa.gov
https://www.cisecurity.org/advisory/multiple-vulnerabilities-in-nichestack-could-allow-for-remote-code-execution/
cisecurity.org
and 30 more references View all →

Timeline

Published
Aug 19, 2021
Last Updated
Nov 21, 2024

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