CVE Vulnerability

CVE-2021-36762

An issue was discovered in HCC Embedded InterNiche NicheStack through 4.3. The tfshnd():tftpsrv.c TFTP packet processing function doesn't ensure that a filename is adequately '' terminated; therefore, a subsequent call to strlen for the filename might read out of bounds of the protocol packet buffer (if no '' byte exists within a reasonable range).

7.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact COMPLETE

Integrity Impact NONE

Availability Impact NONE

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 HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
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 06:14

NVD link : CVE-2021-36762

Mitre link : CVE-2021-36762

Products Affected
No products.
CWE
CWE-273

Improper Check for Dropped Privileges