CVE-2020-35683

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 v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf	Mitigation Third Party Advisory
https://www.hcc-embedded.com	Product
https://www.kb.cert.org/vuls/id/608209	Third Party Advisory US Government Resource
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/	Mitigation Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:hcc-embedded:nichestack:3.0:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:siemens:7km9300-0ae02-0aa0_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:7km9300-0ae02-0aa0:-:*:*:*:*:*:*:*

Information

Published : 2021-08-19 05:15

Updated : 2022-07-12 10:42

NVD link : CVE-2020-35683

Mitre link : CVE-2020-35683

JSON object : View

CWE

CWE-125

Out-of-bounds Read

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Products Affected

siemens

7km9300-0ae02-0aa0
7km9300-0ae02-0aa0_firmware

hcc-embedded

nichestack

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