Medium severity · published Oct 31, 2018
CVE-2018-15321
When BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, 11.6.0-11.6.3.2, or 11.2.1-11.5.6, BIG-IQ Centralized Management 5.0.0-5.4.0 or 4.6.0, BIG-IQ Cloud and…
4.9
CVSS
0.9%
EPSS
No
On KEV
Description
When BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, 11.6.0-11.6.3.2, or 11.2.1-11.5.6, BIG-IQ Centralized Management 5.0.0-5.4.0 or 4.6.0, BIG-IQ Cloud and Orchestration 1.0.0, iWorkflow 2.1.0-2.3.0, or Enterprise Manager 3.1.1 is licensed for Appliance Mode, Admin and Resource administrator roles can by-pass BIG-IP Appliance Mode restrictions to overwrite critical system files. Attackers of high privilege level are able to overwrite critical system files which bypasses security controls in place to limit TMSH commands. This is possible with an administrator or resource administrator roles when granted TMSH. Resource administrator roles must have TMSH access in order to perform this attack.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% 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 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BA
Big-ip Analytics · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BD
Big-ip Domain Name System · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BE
Big-ip Edge Gateway · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BF
Big-ip Fraud Protection Service · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BL
Big-ip Link Controller · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
BP
Big-ip Protocol Security Module · F5
11.2.1 through 11.5.6; 11.6.0 through 11.6.3.2; 12.1.0 through 12.1.3.5; 13.0.0 through 13.1.0.7; 14.0.0 through 14.0.0.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-15321
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-15321
Mitigation
https://support.f5.com/csp/article/K01067037
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