stunnel < 5.00 PRNG State Security Weakness

medium Nessus Plugin ID 73212

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Synopsis

The remote Windows host contains a program that is affected by a security weakness.

Description

The version of stunnel installed on the remote host is prior to version 5.00. It is, therefore, affected by a security weakness due to the PRNG state not being reset for new connections where the server forks. A remote attacker can exploit this issue to disclose sensitive information, such as the private key used for EC (ECDSA) or DSA certificates.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to stunnel version 5.00 or later.

Plugin Details

Severity: Medium

ID: 73212

File Name: stunnel_5_00.nasl

Version: 1.7

Type: local

Agent: windows

Family: Windows

Published: 3/26/2014

Updated: 11/15/2018

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

Vulnerability Information

CPE: cpe:/a:stunnel:stunnel

Required KB Items: installed_sw/stunnel

Exploit Ease: No known exploits are available

Patch Publication Date: 3/6/2014

Vulnerability Publication Date: 3/4/2014

Reference Information

CVE: CVE-2014-0016

BID: 65964

Detections

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