Medium severity · published May 2, 2018
CVE-2018-5516
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…
4.7
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Access Policy Manager · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BA
Big-ip Analytics · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BA
Big-ip Application Security Manager · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BD
Big-ip Domain Name System · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BE
Big-ip Edge Gateway · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BE
Big-ip Enterprise Manager · F5
3.1.1 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BL
Big-ip Link Controller · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.2.1 through 11.6.3; 12.1.0 through 12.1.2; 13.0.0 through 13.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-5516
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-5516
Third Party Advisory
http://www.securitytracker.com/id/1040799
Third Party Advisory
http://www.securitytracker.com/id/1040800
Vendor Advisory
https://support.f5.com/csp/article/K37442533
More from Big-ip Access Policy Manager
9.8
CVE-2026-94127
BIG-IP APM OAuth vulnerability
9.8
CVE-2025-53521
BigIP APM Vulnerability
9.8
CVE-2023-46747
BIG-IP Configuration utility unauthenticated remote code execution vulnerability
9.8
CVE-2022-1388
F5 BIG-IP Missing Authentication Vulnerability
9.8
CVE-2021-22991
F5 BIG-IP Traffic Management Microkernel Buffer Overflow