CVE-2021-27565

The web server in InterNiche NicheStack through 4.0.1 allows remote attackers to cause a denial of service (infinite loop and networking outage) via an unexpected valid HTTP request such as OPTIONS. This occurs because the HTTP request handler enters a miscoded wbs_loop() debugger hook.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : 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://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/	Mitigation Third Party Advisory
https://www.hcc-embedded.com/	Product
https://www.hcc-embedded.com/about/about-interniche	Product
https://www.kb.cert.org/vuls/id/608209	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2021-08-19 12:15

Updated : 2024-02-28 18:28

NVD link : CVE-2021-27565

Mitre link : CVE-2021-27565

CVE.ORG link : CVE-2021-27565

JSON object : View

Products Affected

hcc-embedded

nichestack

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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