####################################################################### # COMPASS SECURITY ADVISORY http://www.csnc.ch/ ####################################################################### # # CVE ID : CVE-2009-4505 # Product: OpenCMS OAMP Comments Module 1.0.0 # Vendor: Open Source, Alkacon GmbH (Cologne, Germany) # Subject: Cross-site scripting (XSS) # Risk: High # Effect: Remotely exploitable # Author: Cyrill Brunschwiler (cyrill.brunschwiler@csnc.ch) # Date: December 24th 2009 # ####################################################################### Introduction: ------------- Cyrill Brunschwiler of Compass Security discovered a web application security flaw in the OpenCMS OAMP comments module. Vulnerable: ----------- OAMP comments module version 1.0.0 Patches: -------- Get the latest version from the opencms cvs at http://cvs.opencms.org/ Fix: ---- All output must be encoded using HTML entities. For that purpose the escapeXml attribute must not being set false on all c:out tags. Moreover, all fmt:param outputs must be encoded as well. Example: Alternatively one could use the OWASP ESAPI (Enterprise Security API) to encode all output. For more details on the OWASP ESAPI consult the google code repository and see http://www.owasp.org/index.php/ESAPI Example: String clean = ESAPI.encoder().encodeForHTML(maliciousInput); Description: ------------ The OAMP comments module allows OpenCMS users to add comments to pages. However, the comment module reflects unfiltered user input. Following that, attackers could injected HTML code and JavaScript code which gets executed within all visitors web browsers. Exploiting the vulnerability will lead to so-called cross-site scripting (XSS) and allows the impersonation of logged-in OpenCMS web and workplace users. Attackers could also embbed arbitrary content such as faked login forms or redirect OpenCMS users to malware pages. Milestones: ----------- December 24th 2009, Vulnerability discovered January 6th 2010, Vendor notified March 13rd 2010, Fixed in CVS (m.jaeger) References: ----------- OpenCMS - http://www.opencms.org/en/ OpenCms from Alkacon Software is a professional, easy to use website content management system. OpenCms helps content managers worldwide to create and maintain beautiful websites fast and efficiently. OpenCMS OAMP Modules - http://www.alkacon.com/en/products/oamp/index.html The Alkacon OpenCms Add-On Module Package (also called OAMP) is a set of free, open source extension modules for OpenCms. Alkacon OAMP adds front- end related features to OpenCms that may be useful in case special functionalities are required. XSS - http://www.owasp.org/index.php/Cross-site_Scripting_(XSS) Cross-Site Scripting attacks are a type of injection problem, in which malicious scripts are injected into the otherwise benign and trusted web sites. Cross-site scripting (XSS) attacks occur when an attacker uses a web application to send malicious code, generally in the form of a browser side script, to a different end user. Flaws that allow these attacks to succeed are quite widespread and occur anywhere a web application uses input from a user in the output it generates without validating or encoding it. An attacker can use XSS to send a malicious script to an unsuspecting user. The end user’s browser has no way to know that the script should not be trusted, and will execute the script. Because it thinks the script came from a trusted source, the malicious script can access any cookies, session tokens, or other sensitive information retained by your browser and used with that site. These scripts can even rewrite the content of the HTML page.
Tag Archives: xss
DokuWiki Version 2007-06-26 XSS
############################################################# # # COMPASS SECURITY ADVISORY http://www.csnc.ch/ ############################################################# # # CVE ID : CVE-2007-3930 # Product: DokuWiki # Vendor: DokuWiki Project # Subject: Cross-site scripting - XSS # Risk: High # Effect: Remotely exploitable # Author: Cyrill Brunschwiler (cyrill.brunschwiler@csnc.ch) # Date: July 19th 2007 # ############################################################# Introduction: ------------- Compass Security discovered a web application security flaw in the DokuWiki application. Vulnerable: ----------- DokuWiki Version 2007-06-26 and prior Not vulnerable: --------------- DokuWiki Version 2007-06-26b Patches: -------- DokuWiki Version 2007-06-26b available from the DokuWiki download page. Fix: ---- Remove the function spell_utf8test() from the PHP script named lib/exe/spellcheck.php Description: ------------ The spell checker PHP script provides a test function which reflects unfiltered user input. Due to Microsoft's Internet Explorer mime-sniffing feature, injected JavaScript code gets executed even though the Content-Header is set to text/plain. Exploting the vulnerability will lead to so-called cross-site scripting (XSS) and allows the impersonation of logged-in DokuWiki users. Milestones: ----------- July 18th, Vulnerability discovered July 18th, Vendor notified July 19th, Vendor provided patched version References: ----------- Vendor Bug Report reference: http://bugs.splitbrain.org/index.php?do=details&task_id=1195 DokuWiki reference: http://wiki.splitbrain.org/wiki:dokuwiki DokuWiki is a standards compliant, simple to use Wiki, mainly aimed at creating documentation of any kind. It is targeted at developer teams, workgroups and small companies. It has a simple but powerful syntax which makes sure the datafiles remain readable outside the Wiki and eases the creation of structured texts. All data is stored in plain text files no database is required. XSS reference: http://en.wikipedia.org/wiki/Cross-site_scripting Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications which allow code injection by malicious web users into the web pages viewed by other users. Examples of such code include HTML code and client-side scripts. An exploited cross-site scripting vulnerability can be used by attackers to bypass access controls such as the same origin policy. Recently, vulnerabilities of this kind have been exploited to craft powerful phishing attacks and browser exploits. Cross-site scripting was originally referred to as CSS, although this usage has been largely discontinued.
SAP NetWeaver, Web Dynpro Java (BC-WD-JAV) multiple XSS
############################################################# # # COMPASS SECURITY ADVISORY http://www.csnc.ch/ # ############################################################# # # Product: NetWeaver, Web Dynpro Java (BC-WD-JAV) # Vendor: SAP # Subject: Multiple XSS, HTML Injection # Risk: Medium # Effect: Remotely exploitable # Author: Cyrill Brunschwiler (cyrill.brunschwiler (at) csnc (dot) ch # Date: June, 17th 2007 # ############################################################# Introduction: ------------- Compass Security discovered a web application security flaw (XSS) in the SAP Web Dynpro Java (BC-WD-JAV) running in either the testing or development mode. Vulnerable: ----------- SAP NetWeaver Nw04 SP15 to SP 19 SAP NetWeaver Nw04s SP7 to SP 11 Not vulnerable: --------------- Customers which run their system in production mode. SAP Java Technology Services 640 SP20 SAP Web Dynpro Runtime Core Components 700 SP12 Vulnerability Management: ------------------------- January 2007: Vulnerability found January 2007: SAP Security notified February 2007: SAP confirmation April/May 2007: Patches available June 2007: Compass Security Information SAP Information Policy: ------------------------- The information is available to registered SAP clients only (SAP Security Notes) Patches: -------- Apply the latest Web Dynpro patch according to the related notes. (See SAP Note No. 1045640, 946608). Description ----------- The NetWeaver Application includes the User-Agent-Header content in the server response body without applying proper encoding. Exploiting the vulnerability will require an attacker to spoof the User-Agent-Header. Abusing technologies such as JavaScript or Flash will allow conducting such an attack. XSS Ref: http://en.wikipedia.org/wiki/Cross-site_scripting Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications which allow code injection by malicious web users into the web pages viewed by other users. Examples of such code include HTML code and client-side scripts. An exploited cross-site scripting vulnerability can be used by attackers to bypass access controls such as the same origin policy. Recently, vulnerabilities of this kind have been exploited to craft powerful phishing attacks and browser exploits. Cross-site scripting was originally referred to as CSS, although this usage has been largely discontinued.
SAP Internet Communication Framework (BC-MID-ICF) multiple XSS
############################################################# # # COMPASS SECURITY ADVISORY http://www.csnc.ch/ # ############################################################# # # Product: Internet Communication Framework (BC-MID-ICF) # Vendor: SAP # Subject: Multiple XSS, HTML Injection # Risk: High # Effect: Remotely exploitable # Author: Cyrill Brunschwiler (cyrill.brunschwiler (at) csnc (dot) ch # Date: June, 17th 2007 # ############################################################# Introduction: ------------- Compass Security discovered multiple web application security flaws in the SAP Internet Communication Framework (BC-MID-ICF). Vulnerable: ----------- SAP Basis component 640 SP19 and lower SAP Basis component 700 SP11 and lower Not vulnerable: --------------- Customers which registered a customized login error page for SIFC transactions (e.g. for default_host) may not suffer this vulnerability. SAP Basis component 640 SP20 SAP Basis component 700 SP12 Vulnerability Management: ------------------------- October 2006: Vulnerability found October 2006: SAP Security notified November 2007: SAP confirmation April/May 2007: Patches available June 2007: Compass Security Information SAP Information Policy: ------------------------- The information is available to registered SAP clients only (SAP Security Notes) Patches: -------- Available at SAP (See SAP Note No. 1022102). Description ----------- The default login error page reflects unfiltered user input for multiple fields. Exploting the vulnerability will lead to so-called cross-site scripting (XSS). XSS Ref: http://en.wikipedia.org/wiki/Cross-site_scripting Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications which allow code injection by malicious web users into the web pages viewed by other users. Examples of such code include HTML code and client-side scripts. An exploited cross-site scripting vulnerability can be used by attackers to bypass access controls such as the same origin policy. Recently, vulnerabilities of this kind have been exploited to craft powerful phishing attacks and browser exploits. Cross-site scripting was originally referred to as CSS, although this usage has been largely discontinued.
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