CVE-2018-5516 Missing authorization in BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe)
Authenticated users with tmsh access can bypass restrictions to read unauthorized file system objects on F5 BIG-IP and management systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-5516?
CVE-2018-5516 is a medium-severity missing authorization vulnerability in F5 Big-Ip Access Policy Manager, published on 2 May 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
On F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.2, or 11.2.1-11.6.3.1, Enterprise Manager 3.1.1, BIG-IQ Centralized Management 5.0.0-5.4.0 or 4.6.0, BIG-IQ Cloud and Orchestration 1.0.0, or F5 iWorkflow 2.0.2-2.3.0, authenticated users granted TMOS Shell (tmsh) access can access objects on the file system which would normally be disallowed by tmsh restrictions. This allows for authenticated, low privileged attackers to exfiltrate objects on the file system which should not be allowed.
Weakness: CWE-732
Which versions are affected by CVE-2018-5516?
It affects 17 products.
Products include F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Domain Name System and 11 more.
How do I fix CVE-2018-5516?
No fix has been published for CVE-2018-5516 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2018-5516 being exploited?
There is no known exploitation of CVE-2018-5516 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Ip Access Policy Manager
- CVE-2023-46747 F5 BIG-IP Configuration Utility Authentication Bypass
- CVE-2022-1388 F5 BIG-IP Missing Authentication
- CVE-2021-22986 F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution
- CVE-2021-22991 F5 BIG-IP Traffic Management Microkernel Buffer Overflow
- CVE-2020-5902 F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution
Sources
Also known as GHSA-8wx2-h54g-674g.