Vulnerability in Tenable Nessus
CVE-2017-11506
When linking a Nessus scanner or agent to Tenable.io or other manager, Nessus 6.x before 6.11 does not verify the manager's TLS certificate when making the initial outgoing connection. This could allow man-in-the-middle attacks.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Tenable Nessus — versions 6.3.7, 6.10.0, 6.1.1
Weakness classification (CWE)
References
- www.tenable.com/security/tns-2017-11 (Vendor Advisory)
- www.securitytracker.com/id/1039141 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-11506?
- CVE-2017-11506 is a high-severity vulnerability in Tenable Nessus, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2017-08-09.
- How severe is CVE-2017-11506?
- High severity. CVSS v3 base score is 7.4 out of 10.