CVE Vulnerability

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

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

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

Configuration 1

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

Published : 2021-08-19 12:15

Updated : 2021-08-26 04:59

NVD link : CVE-2021-27565

Mitre link : CVE-2021-27565

Products Affected
No products.
CWE
CWE-835