Vulnerabilities > CVE-2012-6461 - Improper Input Validation vulnerability in Opera Browser

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
low complexity
opera
CWE-20
nessus

Summary

The X.509 certificate-validation functionality in the https implementation in Opera before 12.10 allows remote attackers to trigger a false indication of successful revocation-status checking by causing a failure of a single checking service.

Vulnerable Configurations

Part Description Count
Application
Opera
167

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201406-14.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201406-14 (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 using Opera, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Furthermore, a remote attacker may be able to obtain sensitive information, conduct Cross-Site Scripting (XSS) attacks, or bypass security restrictions. A local attacker may be able to obtain sensitive information. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id76065
    published2014-06-16
    reporterThis script is Copyright (C) 2014-2015 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/76065
    titleGLSA-201406-14 : Opera: Multiple vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 201406-14.
    #
    # The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
    # and licensed under the Creative Commons - Attribution / Share Alike 
    # license. See http://creativecommons.org/licenses/by-sa/3.0/
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(76065);
      script_version("$Revision: 1.3 $");
      script_cvs_date("$Date: 2015/04/13 14:27:08 $");
    
      script_cve_id("CVE-2012-6461", "CVE-2012-6462", "CVE-2012-6463", "CVE-2012-6464", "CVE-2012-6465", "CVE-2012-6466", "CVE-2012-6467", "CVE-2012-6468", "CVE-2012-6469", "CVE-2012-6470", "CVE-2012-6471", "CVE-2012-6472", "CVE-2013-1618", "CVE-2013-1637", "CVE-2013-1638", "CVE-2013-1639");
      script_bugtraq_id(56407, 56594, 56788, 56980, 56984, 57120, 57121, 57132, 57633, 57773);
      script_xref(name:"GLSA", value:"201406-14");
    
      script_name(english:"GLSA-201406-14 : Opera: Multiple vulnerabilities");
      script_summary(english:"Checks for updated package(s) in /var/db/pkg");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Gentoo host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote host is affected by the vulnerability described in GLSA-201406-14
    (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 using Opera, possibly resulting in execution of arbitrary code with
          the privileges of the process or a Denial of Service condition.
          Furthermore, a remote attacker may be able to obtain sensitive
          information, conduct Cross-Site Scripting (XSS) attacks, or bypass
          security restrictions.
        A local attacker may be able to obtain sensitive information.
      
    Workaround :
    
        There is no known workaround at this time."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/201406-14"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All Opera users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose '>=www-client/opera-12.13_p1734'"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:opera");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2014/06/15");
      script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/16");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2014-2015 Tenable Network Security, Inc.");
      script_family(english:"Gentoo Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("qpkg.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
    if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (qpkg_check(package:"www-client/opera", unaffected:make_list("ge 12.13_p1734"), vulnerable:make_list("lt 12.13_p1734"))) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = qpkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Opera");
    }
    
  • NASL familyWindows
    NASL idOPERA_1210.NASL
    descriptionThe version of Opera installed on the remote host is earlier than 12.10 and is, therefore, reportedly affected by the following vulnerabilities : - An error exists related to certificate revocation checking that can allow the application to indicate that a site is secure even though the check has not completed. (1029) - An error exists related to Cross-Origin Resource Sharing (CORS) handling that can allow specially crafted requests to aid in disclosing sensitive data. (1030) - An error exists related to data URIs that allows bypassing of the
    last seen2020-06-01
    modified2020-06-02
    plugin id62821
    published2012-11-06
    reporterThis script is Copyright (C) 2012-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/62821
    titleOpera < 12.10 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(62821);
      script_version("1.11");
      script_cvs_date("Date: 2018/11/15 20:50:27");
    
      script_cve_id(
        "CVE-2012-6461",
        "CVE-2012-6462",
        "CVE-2012-6463",
        "CVE-2012-6464",
        "CVE-2012-6465",
        "CVE-2012-6466",
        "CVE-2012-6467"
      );
      script_bugtraq_id(56407, 57120, 57121, 57132);
    
      script_name(english:"Opera < 12.10 Multiple Vulnerabilities");
      script_summary(english:"Checks version number of Opera");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote host contains a web browser that is affected by
    multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The version of Opera installed on the remote host is earlier than
    12.10 and is, therefore, reportedly affected by the following
    vulnerabilities : 
    
      - An error exists related to certificate revocation
        checking that can allow the application to indicate
        that a site is secure even though the check has not
        completed. (1029)
    
      - An error exists related to Cross-Origin Resource
        Sharing (CORS) handling that can allow specially
        crafted requests to aid in disclosing sensitive
        data. (1030)
    
      - An error exists related to data URIs that allows
        bypassing of the 'Same Origin Policy' and cross-site
        scripting attacks. (1031)
    
      - An error exists related to JavaScript and native
        objects that allows domains to override methods of
        other domains. This error can aid in cross-site
        scripting attacks. (1032)
    
      - An error exists related to SVG image handling that
        can result in arbitrary code execution. (1033)
    
      - An error exists related to the handling of shortcuts
        in inline elements that can cause the application to
        be redirected to malicious pages. This error can aid
        in phishing attacks. (1034)
    
      - An error exists related to the handling of 'WebP'
        images that can allow disclosure of memory contents.
        (1035)"
      );
      script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20130223094457/http://www.opera.com/support/kb/view/1029/");
      script_set_attribute(attribute:"see_also", value:"http://www.opera.com/support/kb/view/1030/");
      script_set_attribute(attribute:"see_also", value:"http://www.opera.com/support/kb/view/1031/");
      script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20130223094508/http://www.opera.com/support/kb/view/1032/");
      script_set_attribute(attribute:"see_also", value:"http://www.opera.com/support/kb/view/1033/");
      script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20130223094454/http://www.opera.com/support/kb/view/1034/");
      script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20130223094514/http://www.opera.com/support/kb/view/1035/");
      script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20170922233512/http://www.opera.com:80/docs/changelogs/unified/1210/");
      script_set_attribute(attribute:"solution", value: "Upgrade to Opera 12.10 or later.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
      script_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);
     
      script_set_attribute(attribute:"vuln_publication_date", value:"2012/11/06");
      script_set_attribute(attribute:"patch_publication_date", value:"2012/11/06");
      script_set_attribute(attribute:"plugin_publication_date", value:"2012/11/06");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:opera:opera_browser");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows");
    
      script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");
    
      script_dependencies("opera_installed.nasl");
      script_require_keys("SMB/Opera/Version");
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    
    path = get_kb_item_or_exit("SMB/Opera/Path");
    version = get_kb_item_or_exit("SMB/Opera/Version");
    version_ui = get_kb_item("SMB/Opera/Version_UI");
    
    if (isnull(version_ui)) version_report = version;
    else version_report = version_ui; 
    
    fixed_version = "12.10.1652.0";
    
    # Check if we need to display full version info in case of Alpha/Beta/RC
    major_minor = eregmatch(string:version, pattern:"^([0-9]+\.[0-9]+)");
    if (major_minor[1] == "12.10")
    {
      fixed_version_report = fixed_version;
      version_report = version;
    }
    else fixed_version_report = "12.10";
    
    if (ver_compare(ver:version, fix:fixed_version) == -1)
    {
      port = get_kb_item("SMB/transport");
      set_kb_item(name: 'www/'+port+'/XSS', value: TRUE);
      if (report_verbosity > 0)
      {
        report = 
          '\n  Path              : ' + path +
          '\n  Installed version : ' + version_report +
          '\n  Fixed version     : ' + fixed_version_report +
          '\n';
        security_hole(port:port, extra:report);
      }
      else security_hole(port);
      exit(0);
    }
    else audit(AUDIT_INST_PATH_NOT_VULN, "Opera", version_report, path);