Opera < 11.51 Multiple Vulnerabilities (BEAST)
medium Nessus Plugin ID 56042
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VPR Score: 2.7
Synopsis
The remote host contains a web browser that is affected by multiple vulnerabilities.Description
The version of Opera installed on the remote Windows host is prior to 11.51. It is, therefore, affected by multiple vulnerabilities :- An unspecified error can allow an insecure or malicious site to cause the browser to display security information belonging to another, secure site in the address bar. This causes the insecure or malicious site to appear to be part of, or secured by, a third-party site. (CVE-2011-3388)
- An information disclosure vulnerability, known as BEAST, exists in the SSL 3.0 and TLS 1.0 protocols due to a flaw in the way the initialization vector (IV) is selected when operating in cipher-block chaining (CBC) modes. A man-in-the-middle attacker can exploit this to obtain plaintext HTTP header data, by using a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses the HTML5 WebSocket API, the Java URLConnection API, or the Silverlight WebClient API. (CVE-2011-3389)
Solution
Upgrade to Opera 11.51 or later.See Also
http://web.archive.org/web/20130223093835/http://www.opera.com/support/kb/view/1000/
http://web.archive.org/web/20170915045026/http://www.opera.com:80/docs/changelogs/windows/1151/
https://www.imperialviolet.org/2011/09/23/chromeandbeast.html
Plugin Details
Severity: Medium
ID: 56042
File Name: opera_1151.nasl
Version: 1.20
Type: local
Agent: windows
Family: Windows
Published: 9/1/2011
Updated: 11/15/2018
Dependencies: opera_installed.nasl
Risk Information
Risk Factor: Medium
VPR Score: 2.7
CVSS v2.0
Base Score: 5.8
Temporal Score: 4.3
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N
Temporal Vector: E:U/RL:OF/RC:C
Vulnerability Information
CPE: cpe:/a:opera:opera_browser
Required KB Items: SMB/Opera/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 8/31/2011
Vulnerability Publication Date: 8/31/2011
Reference Information
CVE: CVE-2011-3388, CVE-2011-3389
CERT: 864643