OpenSSL 1.0.2 < 1.0.2f Information Disclosure

low Nessus Network Monitor Plugin ID 9465
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote web server is running an outdated instance of OpenSSL and that is affected by an Information Disclosure vulnerability.

Description

According to its banner, the version of OpenSSL on the remote host is 1.0.2 prior to 1.0.2f and is affected by a flaw in the 'DH_check_pub_key()' function in 'crypto/dh/dh_check.c' that is triggered when generating DH parameters based on unsafe primes. By completing multiple handshakes with a peer, a remote attacker can potentially disclose the peer's private DH exponent.

Solution

Upgrade OpenSSL to version 1.0.2f or higher.

See Also

https://www.openssl.org/news/secadv/20160128.txt

Plugin Details

Severity: Low

ID: 9465

Family: Web Servers

Published: 8/5/2016

Updated: 3/6/2019

Dependencies: 5563

Nessus ID: 89543

Risk Information

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 2.3

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.6

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

Temporal Vector: CVSS:3.0/E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

Patch Publication Date: 1/28/2015

Vulnerability Publication Date: 1/28/2015

Reference Information

CVE: CVE-2016-0701

BID: 82233