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OpenSSL 1.0.x < 1.0.2r Information Disclosure Vulnerability

medium Nessus Plugin ID 122504

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Synopsis

A service running on the remote host is affected by an information disclosure vulnerability.

Description

According to its banner, the version of OpenSSL running on the remote host is 1.0.x prior to 1.0.2r. It is, therefore, affected by an information disclosure vulnerability due to the decipherable way a application responds to a 0 byte record. An unauthenticated, remote attacker could exploit this vulnerability, via a padding oracle attack, to potentially disclose sensitive information.

Note: Only 'non-stitched' ciphersuites are exploitable.

Solution

Upgrade to OpenSSL version 1.0.2r or later.

See Also

http://www.nessus.org/u?0e8c6acd

https://www.openssl.org/news/secadv/20190226.txt

Plugin Details

Severity: Medium

ID: 122504

File Name: openssl_1_0_2r.nasl

Version: 1.5

Type: combined

Agent: windows, macosx, unix

Family: Web Servers

Published: 3/1/2019

Updated: 8/21/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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

CVSS Score Source: CVE-2019-1559

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: cpe:/a:openssl:openssl

Required KB Items: installed_sw/OpenSSL

Exploit Ease: No known exploits are available

Patch Publication Date: 2/26/2019

Vulnerability Publication Date: 2/26/2019

Reference Information

CVE: CVE-2019-1559

BID: 107174