Vulnerability in F5 Big-Ip Access Policy Manager
CVE-2018-5518
On F5 BIG-IP 13.0.0-13.1.0.5 or 12.0.0-12.1.3.3, malicious root users with access to a VCMP guest can cause a disruption of service on adjacent VCMP guests running on the same host. Exploiting this vulnerability causes the vCMPd process on the adjacent VCMP guest to restart and produce a core file. This issue is only exploitable on a VCMP guest which is operating in "host-only" or "bridged" mode. VCMP guests which are "isolated" are not impacted by this issue and do not provide mechanism to exploit the vulnerability. Guests which are deployed in "Appliance Mode" may be impacted however the exploit is not possible from an Appliance Mode guest. To exploit this vulnerability root access on a guest system deployed as "host-only" or "bridged" mode is required.
EPSS: 0.004 (35.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H.
Affected products
- 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
- F5 Big-ip_edge_gateway
- F5 Big-ip_global_traffic_manager
- F5 Big-ip_link_controller
- F5 Big-ip_local_traffic_manager
References
- f5sirt@f5.com (x_refsource_CONFIRM, Vendor Advisory)
- f5sirt@f5.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
Frequently asked questions
- What is CVE-2018-5518?
- CVE-2018-5518 is a medium-severity vulnerability in F5 Big-Ip Access Policy Manager. CVSS score: 5.4/10. Published 2018-05-02.
- How severe is CVE-2018-5518?
- Medium severity. CVSS v3 base score is 5.4 out of 10.