OpenSSL 0.9.7 < 0.9.7b Multiple Vulnerabilities

medium Nessus Plugin ID 200199

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Synopsis

The remote service is affected by multiple vulnerabilities.

Description

The version of OpenSSL installed on the remote host is prior to 0.9.7b. It is, therefore, affected by multiple vulnerabilities as referenced in the 0.9.7b advisory.

- The SSL and TLS components for OpenSSL 0.9.6i and earlier, 0.9.7, and 0.9.7a allow remote attackers to perform an unauthorized RSA private key operation via a modified Bleichenbacher attack that uses a large number of SSL or TLS connections using PKCS #1 v1.5 padding that cause OpenSSL to leak information regarding the relationship between ciphertext and the associated plaintext, aka the Klima-Pokorny-Rosa attack. (CVE-2003-0131)

- OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms (Karatsuba and normal). (CVE-2003-0147)

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

Solution

Upgrade to OpenSSL version 0.9.7b or later.

Plugin Details

Severity: Medium

ID: 200199

File Name: openssl_0_9_7b.nasl

Version: 1.2

Type: combined

Agent: windows, macosx, unix

Family: Web Servers

Published: 6/7/2024

Updated: 10/7/2024

Configuration: Enable thorough checks

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2003-0131

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: 3/14/2003

Vulnerability Publication Date: 3/14/2003

Reference Information

CVE: CVE-2003-0131, CVE-2003-0147

Detections

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