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CVE-2021-20144

Published: Dec 9, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-78
NVD MITRE
8.8CVSSHIGH
EPSS Score
3.7%
Top 11.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An unauthenticated command injection vulnerability exists in the parameters of operation 49 in the controller_server service on Gryphon Tower routers. An unauthenticated remote attacker on the same network can execute commands as root on the device by sending a specially crafted malicious packet to the controller_server service on port 9999.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-78

Affected Products

gryphon tower firmwaregryphonconnect
Embedded
ICS / OT / IoT / ip-camera-nvr
Gryphon Tower routern/a
gryphonconnectcommercialICS / OT / IoT

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://www.tenable.com/security/research/tra-2021-51
tenable.com

Timeline

Published
Dec 9, 2021
Last Updated
Nov 21, 2024

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