Opera before 11.60 allows remote attackers to cause a denial of service (CPU and memory consumption) via unspecified content on a web page, as demonstrated by a page under the cisco.com home page.

opera was updated to version 11.60 to fix several security issues

The remote host is running the Opera web browser. 

Versions of Opera earlier than 11.60 are potentially affected by multiple vulnerabilities : 

  - Top level domain separation rules are not honored for two-letter top level domains, e.g., .us or .uk and some three-letter top-level domains.  This error can allow sites to set the scripting context to the top level domain.  Further, this can allow sites to set and read cookies from other sites whose scripting context is set to the same top level domain. (Issue 1003)

  - An error exists in the SSLv3 and TLSv1.3 specification that can allow the BEAST attack. (Issue 1004)

  - An error exists in the implementation of the JavaScript 'in' operator that can allow sites to verify the existence of variables of sites in other domains. (Issue 1005)

  - An unspecified, moderately sever issue exists.  Details are to be disclosed by the vendor at a later date.
IAVB Reference : 2012-B-0006
STIG Finding Severity : Category I

The remote host is running the Opera web browser.  

Versions of Opera earlier than 11.60 are potentially affected by multiple vulnerabilities : 

  - Top level domain separation rules are not honored for two-letter top level domains, e.g., .us or .uk and some three-letter top-level domains.  This error can allow sites to set the scripting context to the top level domain.  Further, this can allow sites to set and read cookies from other sites whose scripting context is set to the same top level domain. (Issue 1003)

  - An error exists in the SSLv3 and TLSv1.3 specification that can allow the BEAST attack. (Issue 1004)

  - An error exists in the implementation of the JavaScript 'in' operator that can allow sites to verify the existence of variables of sites in other domains. (Issue 1005)

  - An unspecified, moderately sever issue exists.  Details are to be disclosed by the vendor at a later date.

The version of Opera installed on the remote Windows host is prior to 11.60. It is, therefore, affected by multiple vulnerabilities :

  - An unspecified error exists that can allow URL     spoofing in the address bar. (CVE-2011-4010)

  - Top level domain separation rules are not honored for     two-letter top level domains, e.g., '.us' or '.uk', and     some three-letter top level domains. This error can     allow sites to set the scripting context to the top     level domain. Further, this can allow sites to set and     read cookies from other sites whose scripting context is     set to the same top level domain. (CVE-2011-4681)

  - An error exists in the implementation of the JavaScript     'in' operator that can allow sites to verify the     existence of variables of sites in other domains.
    (CVE-2011-4682)

  - An unspecified, moderately severe issue exists. Details     are to be disclosed by the vendor at a later date.
    (CVE-2011-4683)

  - The browser does not properly handle certain corner     cases related to certificate revocation. (CVE-2011-4684)

  - Unspecified content can cause the 'Dragonfly' component     of the browser to crash. (CVE-2011-4685)

  - An unspecified error exists related to the 'Web     Workers' implementation that can allow application     crashes. (CVE-2011-4686)

  - An unspecified error exists that can allow remote     content to cause denial of service conditions via     resource consumption. (CVE-2011-4687)

  - 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)

ID	Name	Product	Family	Severity
75986	openSUSE Security Update : opera (openSUSE-SU-2011:1314-1)	Nessus	SuSE Local Security Checks	critical
75699	openSUSE Security Update : opera (openSUSE-SU-2011:1314-1)	Nessus	SuSE Local Security Checks	critical
74533	openSUSE Security Update : opera (openSUSE-2011-76)	Nessus	SuSE Local Security Checks	critical
800845	Opera < 11.60 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	high
6105	Opera < 11.60 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	high
57039	Opera < 11.60 Multiple Vulnerabilities (BEAST)	Nessus	Windows	high

Detections

Analytics

CVE-2011-4687

high

Tenable Plugins

critical

critical

critical

high

high

high