OpenSSL 1.0.0 < 1.0.1o Multiple Vulnerabilities (POODLE)
medium Nessus Plugin ID 78553
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Synopsis
The remote service is affected by multiple vulnerabilities.Description
According to its banner, the remote web server uses a version of OpenSSL 1.0.0 prior to 1.0.0o. The OpenSSL library is, therefore, affected by the following vulnerabilities :- An error exists related to the way SSL 3.0 handles padding bytes when decrypting messages encrypted using block ciphers in cipher block chaining (CBC) mode. A man-in-the-middle attacker can decrypt a selected byte of a cipher text in as few as 256 tries if they are able to force a victim application to repeatedly send the same data over newly created SSL 3.0 connections. This is also known as the 'POODLE' issue. (CVE-2014-3566)
- An error exists related to session ticket handling that can allow denial of service attacks via memory leaks.
(CVE-2014-3567)
- An error exists related to the build configuration process and the 'no-ssl3' build option that allows servers and clients to process insecure SSL 3.0 handshake messages. (CVE-2014-3568)
Solution
Upgrade to OpenSSL 1.0.0o or later.See Also
https://www.openssl.org/news/openssl-1.0.0-notes.html
https://www.openssl.org/news/secadv/20141015.txt
https://www.openssl.org/news/vulnerabilities.html
https://www.imperialviolet.org/2014/10/14/poodle.html
https://www.openssl.org/~bodo/ssl-poodle.pdf
https://tools.ietf.org/html/draft-ietf-tls-downgrade-scsv-00
Plugin Details
Severity: Medium
ID: 78553
File Name: openssl_1_0_0o.nasl
Version: 1.15
Type: remote
Family: Web Servers
Published: 10/17/2014
Updated: 11/25/2019
Dependencies: openssl_version.nasl
Risk Information
CVSS Score Source: CVE-2014-3568
VPR
Risk Factor: Medium
Score: 5.7
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.2
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Temporal Vector: E:U/RL:OF/RC:C
Vulnerability Information
CPE: cpe:/a:openssl:openssl
Required KB Items: openssl/port
Exploit Ease: No known exploits are available
Patch Publication Date: 10/15/2014
Vulnerability Publication Date: 10/14/2014
Reference Information
CERT: 577193