Critical severity · published Apr 13, 2018
CVE-2018-5506
In F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.1, 11.5.1-11.5.5, or 11.2.1 the Apache modules apache_auth_token_mod and mod_auth_f5_auth_token.cpp allow possible unauthenticated…
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
In F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.1, 11.5.1-11.5.5, or 11.2.1 the Apache modules apache_auth_token_mod and mod_auth_f5_auth_token.cpp allow possible unauthenticated bruteforce on the em_server_ip authorization parameter to obtain which SSL client certificates used for mutual authentication between BIG-IQ or Enterprise Manager (EM) and managed BIG-IP devices.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% 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
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BA
Big-ip Analytics · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BA
Big-ip Application Security Manager · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BD
Big-ip Domain Name System · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BE
Big-ip Edge Gateway · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BL
Big-ip Link Controller · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
BW
Big-ip Webaccelerator · F5
11.5.1 through 11.5.5; 12.1.0 through 12.1.3.1; 11.2.1; 11.6.1; 13.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-5506
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-5506
Vendor Advisory
https://support.f5.com/csp/article/K65355492
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