CUPS < 2.0.1 SSLv3 Legacy Encryption Vulnerability (POODLE)

medium Nessus Plugin ID 79580
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Synopsis

The remote printer service is potentially affected by an information disclosure vulnerability.

Description

According to its banner, the CUPS printer service installed on the remote host is a version prior to 2.0.1. It is, therefore, potentially affected by a man-in-the-middle (MitM) information disclosure vulnerability known as POODLE. The vulnerability is due to the way SSL 3.0 handles padding bytes when decrypting messages encrypted using block ciphers in cipher block chaining (CBC) mode. MitM attackers 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.

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

Solution

Either upgrade to CUPS version 2.0.1 or later, or apply the vendor patch.

See Also

https://www.cups.org/blog/2014-11-14-cups-2.0.1.html

https://github.com/apple/cups/issues/4476

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: 79580

File Name: cups_2_0_1.nasl

Version: 1.9

Type: remote

Family: Misc.

Published: 11/26/2014

Updated: 11/15/2018

Dependencies: http_version.nasl, cups_1_3_5.nasl

Configuration: Enable paranoid mode

Risk Information

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:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:apple:cups

Required KB Items: www/cups, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 11/14/2014

Vulnerability Publication Date: 10/14/2014

Reference Information

CVE: CVE-2014-3566

BID: 70574

CERT: 577193