CVE-2020-5858
HIGHCVSS 7.8/10EPSS 0.45%
Last modified
CVE-2020-5858 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. On BIG-IP 15.0.0-15.0.1.2, 14.1.0-14.1.2.2, 13.1.0-13.1.3.2, 12.1.0-12.1.5, and 11.5.2-11.6.5.1 and BIG-IQ 7.0.0, 6.0.0-6.1.0, and 5.2.0-5.4.0, users with non-administrator roles (for example, Guest or Resource Administrator) with tmsh shell access can execute arbitrary commands with elevated privilege via a crafted tmsh command.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
Description
On BIG-IP 15.0.0-15.0.1.2, 14.1.0-14.1.2.2, 13.1.0-13.1.3.2, 12.1.0-12.1.5, and 11.5.2-11.6.5.1 and BIG-IQ 7.0.0, 6.0.0-6.1.0, and 5.2.0-5.4.0, users with non-administrator roles (for example, Guest or Resource Administrator) with tmsh shell access can execute arbitrary commands with elevated privilege via a crafted tmsh command.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Iq Centralized Management | >= 5.2.0, <= 5.4.0 |
| F5 | Big-Iq Centralized Management | >= 6.0.0, <= 6.1.0 |
| F5 | Big-Iq Centralized Management | 7.0.0 |
| F5 | Big-Ip Access Policy Manager | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Access Policy Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Access Policy Manager | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Access Policy Manager | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Access Policy Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Advanced Firewall Manager | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Advanced Firewall Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Advanced Firewall Manager | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Advanced Firewall Manager | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Advanced Firewall Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Analytics | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Analytics | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Analytics | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Analytics | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Analytics | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Application Acceleration Manager | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Application Acceleration Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Application Acceleration Manager | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Application Acceleration Manager | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Application Acceleration Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Application Security Manager | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Application Security Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Application Security Manager | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Application Security Manager | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Application Security Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Domain Name System | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Domain Name System | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Domain Name System | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Domain Name System | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Domain Name System | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Edge Gateway | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Edge Gateway | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Edge Gateway | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Edge Gateway | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Edge Gateway | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Fraud Protection Service | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Fraud Protection Service | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Fraud Protection Service | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Fraud Protection Service | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Fraud Protection Service | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Global Traffic Manager | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Global Traffic Manager | >= 12.1.0, <= 12.1.5 |
| F5 | Big-Ip Global Traffic Manager | >= 13.1.0, <= 13.1.3 |
| F5 | Big-Ip Global Traffic Manager | >= 14.1.0, <= 14.1.2 |
| F5 | Big-Ip Global Traffic Manager | >= 15.0.0, <= 15.0.1 |
| F5 | Big-Ip Link Controller | >= 11.5.2, <= 11.6.5 |
| F5 | Big-Ip Link Controller | >= 12.1.0, <= 12.1.5 |
Showing 50 of 68 affected configurations. See NVD for the full list.
References
- https://support.f5.com/csp/article/K36814487Vendor Advisory
- https://support.f5.com/csp/article/K36814487Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-5858?
On BIG-IP 15.0.0-15.0.1.2, 14.1.0-14.1.2.2, 13.1.0-13.1.3.2, 12.1.0-12.1.5, and 11.5.2-11.6.5.1 and BIG-IQ 7.0.0, 6.0.0-6.1.0, and 5.2.0-5.4.0, users with non-administrator roles (for example, Guest or Resource Administrator) with tmsh shell access can execute arbitrary commands with elevated privilege via a crafted tmsh command.
How severe is CVE-2020-5858?
CVE-2020-5858 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5858?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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.
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Are you affected by CVE-2020-5858?
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