Opera, possibly before 9.25, uses the HTTP Host header to determine the context of a document provided in a (1) 4xx or (2) 5xx CONNECT response from a proxy server, which allows man-in-the-middle attackers to execute arbitrary web script by modifying this CONNECT response, aka an "SSL tampering" attack.

The remote host is affected by the vulnerability described in GLSA-201206-03 (Opera: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Opera. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user to open a specially crafted web       page, possibly resulting in execution of arbitrary code with the       privileges of the process or a Denial of Service condition. A remote       attacker may be able to: trick users into downloading and executing       arbitrary files, bypass intended access restrictions, spoof trusted       content, spoof URLs, bypass the Same Origin Policy, obtain sensitive       information, force subscriptions to arbitrary feeds, bypass the popup       blocker, bypass CSS filtering, conduct cross-site scripting attacks, or       have other unknown impact.
    A local attacker could perform symlink attacks to overwrite arbitrary       files with the privileges of the user running the application or possibly       obtain sensitive information.
    A physically proximate attacker may be able to access an email account.
  Workaround :

    There is no known workaround at this time.

Opera version 10 includes at least security fixes for an XML denial-of-service bug (CVE-2009-1234) and the 'SSL tampering' attack (CVE-2009-2059, CVE-2009-2063, CVE-2009-2067, CVE-2009-2070).

The version of Opera installed on the remote host reportedly is affected by several issues, including one in which TLS certificates could be used to execute arbitrary code.

ID	Name	Product	Family	Severity
59631	GLSA-201206-03 : Opera: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
42029	openSUSE 10 Security Update : opera (opera-6473)	Nessus	SuSE Local Security Checks	medium
40860	openSUSE Security Update : opera (opera-1261)	Nessus	SuSE Local Security Checks	medium
40859	openSUSE Security Update : opera (opera-1261)	Nessus	SuSE Local Security Checks	medium
29742	Opera < 9.25 Multiple Vulnerabilities	Nessus	Windows	high

Detections

Analytics

CVE-2009-2059

high

Tenable Plugins

critical

medium

medium

medium

high