TLS Version 1.0 Protocol Detection

Medium Nessus Plugin ID 104743


The remote service encrypts traffic using an older version of TLS.


The remote service accepts connections encrypted using TLS 1.0. TLS 1.0 has a number of cryptographic design flaws. Modern implementations of TLS 1.0 mitigate these problems, but newer versions of TLS like 1.2 and 1.3 are designed against these flaws and should be used whenever possible.

As of March 31, 2020, Endpoints that aren’t enabled for TLS 1.2 and higher will no longer function properly with major web browsers and major vendors.

PCI DSS v3.2 requires that TLS 1.0 be disabled entirely by June 30, 2018, except for POS POI terminals (and the SSL/TLS termination points to which they connect) that can be verified as not being susceptible to any known exploits.


Enable support for TLS 1.2 and 1.3, and disable support for TLS 1.0.

See Also

Plugin Details

Severity: Medium

ID: 104743

File Name: tls10_detection.nasl

Version: 1.9

Type: remote

Published: 2017/11/22

Updated: 2020/03/31

Dependencies: 21643

Asset Inventory: True

Risk Information

Risk Factor: Medium

CVSS Score Source: manual

CVSS Score Rationale: Score from a more in depth analysis done by tenable

CVSS v2.0

Base Score: 6.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:P/A:N

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Vulnerability Information

Required KB Items: SSL/Supported