Detections
Analytics
OpenSSL 1.1.0 < 1.1.0i Multiple Vulnerabilities
medium Nessus Plugin ID 112120
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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 1.1.0i. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.1.0i advisory.- Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'. (CVE-2018-5407)
- During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o). (CVE-2018-0732)
- The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to a cache timing side channel attack. An attacker with sufficient access to mount cache timing attacks during the RSA key generation process could recover the private key. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2b-1.0.2o). (CVE-2018-0737)
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 1.1.0i or later.See Also
http://www.nessus.org/u?0a1d82e9
http://www.nessus.org/u?c736b9c1
http://www.nessus.org/u?ca563bc3
https://www.cve.org/CVERecord?id=CVE-2018-0732
https://www.cve.org/CVERecord?id=CVE-2018-0737
https://www.cve.org/CVERecord?id=CVE-2018-5407
https://www.openssl.org/news/secadv/20180612.txt
Plugin Details
Severity: Medium
ID: 112120
File Name: openssl_1_1_0i.nasl
Version: 1.8
Type: combined
Agent: windows, macosx, unix
Family: Web Servers
Published: 8/27/2018
Updated: 6/7/2024
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: 3.4
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2018-0737
CVSS v3
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 5.3
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:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:openssl:openssl
Required KB Items: installed_sw/OpenSSL
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/14/2018
Vulnerability Publication Date: 4/16/2018