Vulnerability in F5 Big-Ip Domain Name System
CVE-2018-5540
On F5 BIG-IP 13.0.0-13.0.1, 12.1.0-12.1.3.3, 11.6.0-11.6.3.1, or 11.5.1-11.5.6, Enterprise Manager 3.1.1, BIG-IQ Centralized Management 5.0.0-5.1.0, BIG-IQ Cloud and Orchestration 1.0.0, or F5 iWorkflow 2.1.0-2.3.0 the big3d process does not irrevocably minimize group privileges at start up.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (32.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- F5 Big-Ip Domain Name System
- F5 Big-Ip Global Traffic Manager
- F5 Big-Iq Centralized Management
- F5 Big-Iq Cloud And Orchestration — versions 1.0.0
- F5 Enterprise Manager — versions 3.1.1
- F5 Iworkflow
- F5 Networks, Inc. Big-Ip (DNS, Gtm) — versions 13.0.0-13.0.1, 12.1.0-12.1.3.3, 11.6.0-11.6.3.1
- F5 Networks, Inc. Big-Iq Centralized Management — versions 5.0.0-5.1.0
- F5 Networks, Inc. Big-Iq Cloud And Orchestration — versions 1.0.0
- F5 Networks, Inc. Enterprise Manager — versions 3.1.1
Weakness classification (CWE)
References
- www.securitytracker.com/id/1041340 (VDB Entry, Third Party Advisory, vdb-entry)
- support.f5.com/csp/article/K82038789 (Vendor Advisory)
- www.securityfocus.com/bid/104920 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1041341 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-5540?
- CVE-2018-5540 is a medium-severity vulnerability in F5 Big-Ip Domain Name System, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 4.4/10. Published 2018-07-19.
- How severe is CVE-2018-5540?
- Medium severity. CVSS v3 base score is 4.4 out of 10.