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TI-2017-08508 Aliases CVE-2017-11506GHSA-rgmc-q3r4-jxvv

Improper certificate validation in Tenable Nessus

Priority LOW 33CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

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.

Why it matters now

EPSS 0.00571 47th percentileScored 2026-11-07
Fix Fixed Nessus (Tenable): 6.11

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
TenableNessus6 to before 6.116.11Patch availableCNA
  • Nessus VendorTenable Affected 6 to before 6.11 Fixed in 6.11 Patch available CNA

CPE configurations NVD · 47

CPEVersionsRoleVendor
cpe:2.3:a:tenable:nessus:6.0.0:*:*:*:*:*:*:*6.0.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.0.1:*:*:*:*:*:*:*6.0.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.0.2:*:*:*:*:*:*:*6.0.2VulnerableTenable
cpe:2.3:a:tenable:nessus:6.1.0:*:*:*:*:*:*:*6.1.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.1.1:*:*:*:*:*:*:*6.1.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.1.2:*:*:*:*:*:*:*6.1.2VulnerableTenable
cpe:2.3:a:tenable:nessus:6.2.0:*:*:*:*:*:*:*6.2.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.2.1:*:*:*:*:*:*:*6.2.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.3.0:*:*:*:*:*:*:*6.3.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.3.1:*:*:*:*:*:*:*6.3.1VulnerableTenable
  • cpe:2.3:a:tenable:nessus:6.0.0:*:*:*:*:*:*:* Versions 6.0.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.0.1:*:*:*:*:*:*:* Versions 6.0.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.0.2:*:*:*:*:*:*:* Versions 6.0.2 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.1.0:*:*:*:*:*:*:* Versions 6.1.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.1.1:*:*:*:*:*:*:* Versions 6.1.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.1.2:*:*:*:*:*:*:* Versions 6.1.2 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.2.1:*:*:*:*:*:*:* Versions 6.2.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.3.0:*:*:*:*:*:*:* Versions 6.3.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.3.1:*:*:*:*:*:*:* Versions 6.3.1 Vulnerable ·Tenable
Show 37 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:tenable:nessus:6.3.2:*:*:*:*:*:*:*6.3.2VulnerableTenable
cpe:2.3:a:tenable:nessus:6.3.3:*:*:*:*:*:*:*6.3.3VulnerableTenable
cpe:2.3:a:tenable:nessus:6.3.4:*:*:*:*:*:*:*6.3.4VulnerableTenable
cpe:2.3:a:tenable:nessus:6.3.5:*:*:*:*:*:*:*6.3.5VulnerableTenable
cpe:2.3:a:tenable:nessus:6.3.6:*:*:*:*:*:*:*6.3.6VulnerableTenable
cpe:2.3:a:tenable:nessus:6.3.7:*:*:*:*:*:*:*6.3.7VulnerableTenable
cpe:2.3:a:tenable:nessus:6.4.0:*:*:*:*:*:*:*6.4.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.4.1:*:*:*:*:*:*:*6.4.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.4.2:*:*:*:*:*:*:*6.4.2VulnerableTenable
cpe:2.3:a:tenable:nessus:6.4.3:*:*:*:*:*:*:*6.4.3VulnerableTenable
cpe:2.3:a:tenable:nessus:6.5.0:*:*:*:*:*:*:*6.5.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.5.1:*:*:*:*:*:*:*6.5.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.5.2:*:*:*:*:*:*:*6.5.2VulnerableTenable
cpe:2.3:a:tenable:nessus:6.5.3:*:*:*:*:*:*:*6.5.3VulnerableTenable
cpe:2.3:a:tenable:nessus:6.5.4:*:*:*:*:*:*:*6.5.4VulnerableTenable
cpe:2.3:a:tenable:nessus:6.5.5:*:*:*:*:*:*:*6.5.5VulnerableTenable
cpe:2.3:a:tenable:nessus:6.5.6:*:*:*:*:*:*:*6.5.6VulnerableTenable
cpe:2.3:a:tenable:nessus:6.6.0:*:*:*:*:*:*:*6.6.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.6.1:*:*:*:*:*:*:*6.6.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.6.2:*:*:*:*:*:*:*6.6.2VulnerableTenable
cpe:2.3:a:tenable:nessus:6.7.0:*:*:*:*:*:*:*6.7.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.8.0:*:*:*:*:*:*:*6.8.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.8.1:*:*:*:*:*:*:*6.8.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.9.0:*:*:*:*:*:*:*6.9.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.9.1:*:*:*:*:*:*:*6.9.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.9.2:*:*:*:*:*:*:*6.9.2VulnerableTenable
cpe:2.3:a:tenable:nessus:6.9.3:*:*:*:*:*:*:*6.9.3VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.0:*:*:*:*:*:*:*6.10.0VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.1:*:*:*:*:*:*:*6.10.1VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.2:*:*:*:*:*:*:*6.10.2VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.3:*:*:*:*:*:*:*6.10.3VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.4:*:*:*:*:*:*:*6.10.4VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.5:*:*:*:*:*:*:*6.10.5VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.6:*:*:*:*:*:*:*6.10.6VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.7:*:*:*:*:*:*:*6.10.7VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.8:*:*:*:*:*:*:*6.10.8VulnerableTenable
cpe:2.3:a:tenable:nessus:6.10.9:*:*:*:*:*:*:*6.10.9VulnerableTenable
  • cpe:2.3:a:tenable:nessus:6.3.2:*:*:*:*:*:*:* Versions 6.3.2 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.3.3:*:*:*:*:*:*:* Versions 6.3.3 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.3.4:*:*:*:*:*:*:* Versions 6.3.4 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.3.5:*:*:*:*:*:*:* Versions 6.3.5 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.3.6:*:*:*:*:*:*:* Versions 6.3.6 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.3.7:*:*:*:*:*:*:* Versions 6.3.7 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.4.1:*:*:*:*:*:*:* Versions 6.4.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.4.2:*:*:*:*:*:*:* Versions 6.4.2 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.4.3:*:*:*:*:*:*:* Versions 6.4.3 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.5.0:*:*:*:*:*:*:* Versions 6.5.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.5.1:*:*:*:*:*:*:* Versions 6.5.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.5.2:*:*:*:*:*:*:* Versions 6.5.2 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.5.3:*:*:*:*:*:*:* Versions 6.5.3 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.5.4:*:*:*:*:*:*:* Versions 6.5.4 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.5.5:*:*:*:*:*:*:* Versions 6.5.5 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.5.6:*:*:*:*:*:*:* Versions 6.5.6 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.6.0:*:*:*:*:*:*:* Versions 6.6.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.6.1:*:*:*:*:*:*:* Versions 6.6.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.6.2:*:*:*:*:*:*:* Versions 6.6.2 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.7.0:*:*:*:*:*:*:* Versions 6.7.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.8.0:*:*:*:*:*:*:* Versions 6.8.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.8.1:*:*:*:*:*:*:* Versions 6.8.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.9.0:*:*:*:*:*:*:* Versions 6.9.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.9.1:*:*:*:*:*:*:* Versions 6.9.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.9.2:*:*:*:*:*:*:* Versions 6.9.2 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.9.3:*:*:*:*:*:*:* Versions 6.9.3 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.0:*:*:*:*:*:*:* Versions 6.10.0 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.1:*:*:*:*:*:*:* Versions 6.10.1 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.2:*:*:*:*:*:*:* Versions 6.10.2 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.3:*:*:*:*:*:*:* Versions 6.10.3 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.4:*:*:*:*:*:*:* Versions 6.10.4 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.5:*:*:*:*:*:*:* Versions 6.10.5 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.6:*:*:*:*:*:*:* Versions 6.10.6 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.7:*:*:*:*:*:*:* Versions 6.10.7 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.8:*:*:*:*:*:*:* Versions 6.10.8 Vulnerable ·Tenable
  • cpe:2.3:a:tenable:nessus:6.10.9:*:*:*:*:*:*:* Versions 6.10.9 Vulnerable ·Tenable

Remediation

  • Fix · CNA Nessus (Tenable) Fixed in 6.11

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-11506
  2. 2026-10-03 Alias added: GHSA-rgmc-q3r4-jxvv

References

Advisory 1

  • TI-2022-00687 Infinite loop in BN_mod_sqrt() reachable when parsing certificates CVSS 3.1HIGH 7.5
  • TI-2021-20962 In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the… CVSS 3.1HIGH 8.8
  • TI-2021-21076 In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. CVSS 3.1HIGH 8.1
  • TI-2021-02413 NULL pointer deref in signature_algorithms processing CVSS 3.1MEDIUM 5.9
  • TI-2021-02414 CA certificate check bypass with X509_V_FLAG_X509_STRICT CVSS 3.1HIGH 7.4
  • TI-2022-07855 Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for… CVSS 3.1CRITICAL 9.8
See all 67 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences