CVE-2021-20144
Last modified
CVE-2021-20144 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 3.71% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gryphonconnect | Gryphon Tower Firmware | <= 04.0004.12 |
References
- https://www.tenable.com/security/research/tra-2021-51Exploit, Vendor Advisory
- https://www.tenable.com/security/research/tra-2021-51Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-20144?
How severe is CVE-2021-20144?
How do I fix CVE-2021-20144?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-20139An unauthenticated command injection vulnerability exists in…8.8
- CVE-2021-2014Vulnerability in the MySQL Server product of Oracle MySQL (c…4.9
- CVE-2021-20140An unauthenticated command injection vulnerability exists in…8.8
- CVE-2021-20141An unauthenticated command injection vulnerability exists in…8.8
- CVE-2021-20142An unauthenticated command injection vulnerability exists in…8.8
- CVE-2021-20143An unauthenticated command injection vulnerability exists in…8.8
- CVE-2021-20145Gryphon Tower routers contain an unprotected openvpn configu…7.5
- CVE-2021-20146An unprotected ssh private key exists on the Gryphon devices…9.8
- CVE-2021-20147ManageEngine ADSelfService Plus below build 6116 contains an…5.3
- CVE-2021-20148ManageEngine ADSelfService Plus below build 6116 stores the …4.3
- CVE-2021-20149Trendnet AC2600 TEW-827DRU version 2.08B01 does not have suf…9.8
- CVE-2021-2015Vulnerability in the Oracle Workflow product of Oracle E-Bus…8.2
Are you affected by CVE-2021-20144?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST