Opera < 28.0.1750.40 SSL/TLS EXPORT_RSA Ciphers Downgrade MitM (Mac OS X) (FREAK)

Medium Nessus Plugin ID 81882


The remote Mac OS X host has a web browser installed that is affected by the FREAK vulnerability.


The remote Mac OS X host has a version of the Opera web browser installed that is prior to 28.0.1750.40. It is, therefore, affected by a security feature bypass vulnerability, known as FREAK (Factoring attack on RSA-EXPORT Keys), due to the support of weak EXPORT_RSA cipher suites with keys less than or equal to 512 bits. A man-in-the-middle attacker may be able to downgrade the SSL/TLS connection to use EXPORT_RSA cipher suites which can be factored in a short amount of time, allowing the attacker to intercept and decrypt the traffic.


Upgrade to Opera version 28.0 or later.

See Also



Plugin Details

Severity: Medium

ID: 81882

File Name: macosx_opera_28_0_1750_40.nasl

Version: $Revision: 1.7 $

Type: local

Agent: macosx

Published: 2015/03/17

Modified: 2016/05/16

Dependencies: 81883

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.1

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: cpe:/a:opera:opera_browser

Required KB Items: installed_sw/Opera

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2015/03/10

Vulnerability Publication Date: 2015/01/08

Reference Information

CVE: CVE-2015-0204

BID: 71936

OSVDB: 116794, 119307

CERT: 243585