Video: Attacking XML preprocessing
Posted on 26 June 2012.
Documenting more than a year of research in XML technologies, this talk by Nicolas Grégoire at Hack in The Box 2012 Amsterdam details security implications of the XML format and its processing practices.

Discussed targets range from browsers to enterprise-level security solutions and web-service back-ends. Several key technologies will be addressed: XML grammar aka DTD, homo-iconicity and self-contained dynamic SVG images, design and implementation vulnerabilities in XSLT and XPath engines, in-memory exploitation of Java-based XSLT engines, XML databases and more. PoC code has and will systematically be released for every (patched) vulnerability.

The goal of this presentation is to document and publicize state of the art attacks including:
  • Data obfuscation in XML containers (Adobe, VLC, ...)
  • DTD manipulation used to read (possibly binary) files, steal hashes or generate XSS
  • Dangerous extensions in newly studied XSLT and XQuery engines (Adobe, Oracle, XT, 4Suite, ...)
  • Grammar and mutation-based fuzzing of XPath and XSLT engines
  • Bizarre combination of grammar, data, code and markup in a single XML file
  • How to trigger XSLT code in security protocols (SAML, WS-Security, ...)
  • Advanced in-memory exploitation of Java based XSLT engines.





Spotlight

Staples customers likely the latest victims of credit card breach

Posted on 21 October 2014.  |  Multiple banks say they have identified a pattern of credit and debit card fraud suggesting that several Staples Inc. office supply locations in the Northeastern United States are currently dealing with a data breach.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  

DON'T
MISS

Wed, Oct 22nd
    COPYRIGHT 1998-2014 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //