CVE-2021-20142

An unauthenticated command injection vulnerability exists in the parameters of operation 41 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 v3.1

8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

8.3 HIGHAV:A/AC:L/Au:N/C:C/I:C/A:C

EPSS

3.71% chance of exploitation in the next 30 days, 89th percentile

Published

2021-12-09

Updated

2024-08-03

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2021-20141
• CVE-2021-20143
• CVE-2021-20140
• CVE-2021-20144
• CVE-2021-20139
• CVE-2021-20145