Vulnerabilities > CVE-2007-6522 - Cross-Site Scripting vulnerability in Opera Browser

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
opera
CWE-79
nessus

Summary

The rich text editing functionality in Opera before 9.25 allows remote attackers to conduct cross-domain scripting attacks by using designMode to modify contents of pages in other domains.

Vulnerable Configurations

Part Description Count
Application
Opera
105

Common Attack Pattern Enumeration and Classification (CAPEC)

  • 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.
  • Embedding Scripts in Non-Script Elements
    This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an attacker to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote attacker to collect and interpret the output of said attack.
  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Cross-Site Scripting in Error Pages
    An attacker distributes a link (or possibly some other query structure) with a request to a third party web server that is malformed and also contains a block of exploit code in order to have the exploit become live code in the resulting error page. When the third party web server receives the crafted request and notes the error it then creates an error message that echoes the malformed message, including the exploit. Doing this converts the exploit portion of the message into to valid language elements that are executed by the viewing browser. When a victim executes the query provided by the attacker the infected error message error message is returned including the exploit code which then runs in the victim's browser. XSS can result in execution of code as well as data leakage (e.g. session cookies can be sent to the attacker). This type of attack is especially dangerous since the exploit appears to come from the third party web server, who the victim may trust and hence be more vulnerable to deception.
  • Cross-Site Scripting Using Alternate Syntax
    The attacker uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For example, many keywords are processed in a case insensitive manner. If the site's web filtering algorithm does not convert all tags into a consistent case before the comparison with forbidden keywords it is possible to bypass filters (e.g., incomplete black lists) by using an alternate case structure. For example, the "script" tag using the alternate forms of "Script" or "ScRiPt" may bypass filters where "script" is the only form tested. Other variants using different syntax representations are also possible as well as using pollution meta-characters or entities that are eventually ignored by the rendering engine. The attack can result in the execution of otherwise prohibited functionality.

Nessus

  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-200712-22.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-200712-22 (Opera: Multiple vulnerabilities) David Bloom reported two vulnerabilities where plug-ins (CVE-2007-6520) and Rich text editing (CVE-2007-6522) could be used to allow cross domain scripting. Alexander Klink (Cynops GmbH) discovered an issue with TLS certificates (CVE-2007-6521). Gynvael Coldwind reported that bitmaps might reveal random data from memory (CVE-2007-6524). Impact : A remote attacker could exploit these vulnerabilities, possibly leading to the execution of arbitrary code and cross domain scripting. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id29819
    published2007-12-31
    reporterThis script is Copyright (C) 2007-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29819
    titleGLSA-200712-22 : Opera: Multiple vulnerabilities
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 200712-22.
    #
    # The advisory text is Copyright (C) 2001-2016 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(29819);
      script_version("1.16");
      script_cvs_date("Date: 2019/08/02 13:32:44");
    
      script_cve_id("CVE-2007-6520", "CVE-2007-6521", "CVE-2007-6522", "CVE-2007-6524");
      script_xref(name:"GLSA", value:"200712-22");
    
      script_name(english:"GLSA-200712-22 : 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-200712-22
    (Opera: Multiple vulnerabilities)
    
        David Bloom reported two vulnerabilities where plug-ins (CVE-2007-6520)
        and Rich text editing (CVE-2007-6522) could be used to allow cross
        domain scripting. Alexander Klink (Cynops GmbH) discovered an issue
        with TLS certificates (CVE-2007-6521). Gynvael Coldwind reported that
        bitmaps might reveal random data from memory (CVE-2007-6524).
      
    Impact :
    
        A remote attacker could exploit these vulnerabilities, possibly leading
        to the execution of arbitrary code and cross domain scripting.
      
    Workaround :
    
        There is no known workaround at this time."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/200712-22"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All Opera users should upgrade to the latest version:
        # emerge --sync
        # emerge --ask --oneshot --verbose '>=www-client/opera-9.25'"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_cwe_id(79, 200, 310);
    
      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:"2007/12/30");
      script_set_attribute(attribute:"plugin_publication_date", value:"2007/12/31");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2007-2019 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 9.25"), vulnerable:make_list("lt 9.25"))) 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_925.NASL
    descriptionThe 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.
    last seen2020-06-01
    modified2020-06-02
    plugin id29742
    published2007-12-19
    reporterThis script is Copyright (C) 2007-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29742
    titleOpera < 9.25 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    
    include("compat.inc");
    
    if (description)
    {
      script_id(29742);
      script_version("1.17");
    
      script_cve_id(
        "CVE-2007-6520", 
        "CVE-2007-6521", 
        "CVE-2007-6522", 
        "CVE-2007-6523", 
        "CVE-2007-6524",
        "CVE-2009-2059",
        "CVE-2009-2063"
      );
      script_bugtraq_id(26721, 26937, 35380, 35412);
    
      script_name(english:"Opera < 9.25 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 several
    issues." );
      script_set_attribute(attribute:"description", value:
    "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." );
      script_set_attribute(attribute:"see_also", value:"https://www.microsoft.com/en-us/research/publication/pretty-bad-proxy-an-overlooked-adversary-in-browsers-https-deployments/?from=http%3A%2F%2Fresearch.microsoft.com%2Fapps%2Fpubs%2Fdefault.aspx%3Fid%3D79323" );
      script_set_attribute(attribute:"see_also", value:"http://www.opera.com/support/search/view/875/" );
      script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20080516195213/http://www.opera.com/support/search/view/876/" );
      script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20170714204727/http://www.opera.com:80/docs/changelogs/windows/925/" );
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Opera version 9.25 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(79, 189, 200, 287, 310, 399);
     script_set_attribute(attribute:"plugin_publication_date", value: "2007/12/19");
     script_cvs_date("Date: 2018/11/15 20:50:28");
      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) 2007-2018 Tenable Network Security, Inc.");
    
      script_dependencies("opera_installed.nasl");
      script_require_keys("SMB/Opera/Version_UI");
    
      exit(0);
    }
    
    
    include("global_settings.inc");
    
    
    version_ui = get_kb_item("SMB/Opera/Version_UI");
    if (isnull(version_ui)) exit(0);
    
    if (version_ui =~ "^([0-8]\.|9\.([01][0-9]|2[0-4])($|[^0-9]))")
    {
      if (report_verbosity)
      {
        report = string(
          "\n",
          "Opera version ", version_ui, " is currently installed on the remote host.\n"
        );
        security_hole(port:get_kb_item("SMB/transport"), extra:report);
      }
      else security_hole(get_kb_item("SMB/transport"));
    }
    
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_31B045E7AE7511DCA5F9001A4D49522B.NASL
    descriptionOpera Software ASA reports about multiple security fixes : - Fixed an issue where plug-ins could be used to allow cross domain scripting, as reported by David Bloom. Details will be disclosed at a later date. - Fixed an issue with TLS certificates that could be used to execute arbitrary code, as reported by Alexander Klink (Cynops GmbH). Details will be disclosed at a later date. - Rich text editing can no longer be used to allow cross domain scripting, as reported by David Bloom. See our advisory. - Prevented bitmaps from revealing random data from memory, as reported by Gynvael Coldwind. Details will be disclosed at a later date.
    last seen2020-06-01
    modified2020-06-02
    plugin id29771
    published2007-12-24
    reporterThis script is Copyright (C) 2007-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/29771
    titleFreeBSD : opera -- multiple vulnerabilities (31b045e7-ae75-11dc-a5f9-001a4d49522b)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from the FreeBSD VuXML database :
    #
    # Copyright 2003-2018 Jacques Vidrine and contributors
    #
    # Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
    # HTML, PDF, PostScript, RTF and so forth) with or without modification,
    # are permitted provided that the following conditions are met:
    # 1. Redistributions of source code (VuXML) must retain the above
    #    copyright notice, this list of conditions and the following
    #    disclaimer as the first lines of this file unmodified.
    # 2. Redistributions in compiled form (transformed to other DTDs,
    #    published online in any format, converted to PDF, PostScript,
    #    RTF and other formats) must reproduce the above copyright
    #    notice, this list of conditions and the following disclaimer
    #    in the documentation and/or other materials provided with the
    #    distribution.
    # 
    # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
    # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
    # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
    # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
    # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
    # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
    # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
    # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
    # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(29771);
      script_version("1.17");
      script_cvs_date("Date: 2019/08/02 13:32:38");
    
      script_cve_id("CVE-2007-6520", "CVE-2007-6521", "CVE-2007-6522", "CVE-2007-6524");
    
      script_name(english:"FreeBSD : opera -- multiple vulnerabilities (31b045e7-ae75-11dc-a5f9-001a4d49522b)");
      script_summary(english:"Checks for updated packages in pkg_info output");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote FreeBSD host is missing one or more security-related
    updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Opera Software ASA reports about multiple security fixes :
    
    - Fixed an issue where plug-ins could be used to allow cross domain
    scripting, as reported by David Bloom. Details will be disclosed at a
    later date.
    
    - Fixed an issue with TLS certificates that could be used to execute
    arbitrary code, as reported by Alexander Klink (Cynops GmbH). Details
    will be disclosed at a later date.
    
    - Rich text editing can no longer be used to allow cross domain
    scripting, as reported by David Bloom. See our advisory.
    
    - Prevented bitmaps from revealing random data from memory, as
    reported by Gynvael Coldwind. Details will be disclosed at a later
    date."
      );
      # http://www.opera.com/docs/changelogs/freebsd/925/
      script_set_attribute(
        attribute:"see_also",
        value:"https://help.opera.com/en/latest/"
      );
      # http://www.opera.com/support/search/view/875/
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?727499ab"
      );
      # https://vuxml.freebsd.org/freebsd/31b045e7-ae75-11dc-a5f9-001a4d49522b.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?97c5c7bf"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_cwe_id(79, 200, 310);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-opera");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:opera");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:opera-devel");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2007/12/19");
      script_set_attribute(attribute:"patch_publication_date", value:"2007/12/19");
      script_set_attribute(attribute:"plugin_publication_date", value:"2007/12/24");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2007-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"FreeBSD Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("freebsd_package.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
    if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (pkg_test(save_report:TRUE, pkg:"opera<9.25")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"opera-devel<9.25")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"linux-opera<9.25")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familySuSE Local Security Checks
    NASL idSUSE_OPERA-4858.NASL
    descriptionOpera released version 9.25 of their browser to fix various security problems. CVE-2007-6520: Fixed an issue where plug-ins could be used to allow cross domain scripting, as reported by David Bloom. Details will be disclosed at a later date. CVE-2007-6521: Fixed an issue with TLS certificates that could be used to execute arbitrary code, as reported by Alexander Klink (Cynops GmbH). Details will be disclosed at a later date. CVE-2007-6522: Rich text editing can no longer be used to allow cross domain scripting, as reported by David Bloom. See our advisory. CVE-2007-6523: Fixed a problem where malformed BMP files could cause Opera to temporarily freeze. CVE-2007-6524: Prevented bitmaps from revealing random data from memory, as reported by Gynvael Coldwind. Details will be disclosed at a later date.
    last seen2020-06-01
    modified2020-06-02
    plugin id29884
    published2008-01-08
    reporterThis script is Copyright (C) 2008-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/29884
    titleopenSUSE 10 Security Update : opera (opera-4858)

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 26937 CVE(CAN) ID: CVE-2007-6520,CVE-2007-6521,CVE-2007-6522,CVE-2007-6524 Opera是一款流行的WEB浏览器,支持多种平台。 Opera Web浏览器的9.25之前版本中存在多个安全漏洞,可能允许恶意用户执行跨站脚本攻击、泄露敏感信息、导致拒绝服务或执行任意代码。 1) 某些插件可能导致跨站脚本攻击。 2) 在连接到TLS保护的站点时,Opera会解析包含有主题替换名称的X.509证书。如果证书带有特制的主题替换名称的话,就会在Opera中触发堆溢出,导致拒绝服务或执行任意代码。 3) Opera中的富文本编辑功能允许远程攻击者通过使用designMode修改其他域中网页的内容执行跨站脚本攻击。 4) Opera在处理特制的BMP文件时可能允许攻击者通过HTML文档中的CANVAS单元和JavaScript获得敏感内存内容。这个漏洞与CVE-2008-0420中所述漏洞相关。 Opera Software Opera &lt; 9.25 Opera Software -------------- 目前厂商已经发布了升级补丁以修复这个安全问题,请到厂商的主页下载: <a href=http://www.opera.com target=_blank>http://www.opera.com</a> Gentoo ------ Gentoo已经为此发布了一个安全公告(GLSA-200712-22)以及相应补丁: GLSA-200712-22:Opera: Multiple vulnerabilities 链接:<a href=http://security.gentoo.org/glsa/glsa-200712-22.xml target=_blank>http://security.gentoo.org/glsa/glsa-200712-22.xml</a> 所有Opera用户都应升级到最新版本: # emerge --sync # emerge --ask --oneshot --verbose &quot;&gt;=www-client/opera-9.25&quot;
idSSV:3351
last seen2017-11-19
modified2008-05-30
published2008-05-30
reporterRoot
titleOpera Web浏览器9.25版本修复多个漏洞