WebApp Sec mailing list archives
Re: Announcement: Releasing CORE GRASP for PHP. An open source, dynamic web application protection system.
From: Ezequiel Gutesman <egutesman () coresecurity com>
Date: Tue, 28 Aug 2007 17:14:16 -0300
Hello Serg, thanks for worrying. Actually you're mixing Stefan Esser's statements (go back to his post). We are working on the upcoming CORE GRASP version which will solve: - A false positive due to doubly escaped quotes inside our sql FSM. - Wrong handling of the _SERVER superglobal. - Log injection of control characters. We are also working on the performance and plan to release a revised version lowering the run-time penalty soon. That release will also include RegEx mark propagation. Again, thanks for worrying. Ezequiel Serg B. wrote:
FYI: http://blog.php-security.org/archives/92-CORE-GRASP-PHP-Tainted-Mode.html "Unfortunately, Stefan also mentions two big issues it might have from the get-go: the overhead for the memory needed can slow things down and an incorrect parsing in their query handler could lead to injection attacks." Serg On 23/08/07, Ezequiel Gutesman <egutesman () coresecurity com> wrote:CORE GRASP for PHP is a web-application protection software aimed at detecting and blocking injection vulnerabilities and privacy violations. As mentioned during its presentation at Black Hat USA 2007, GRASP is being released as open source under the Apache 2.0 license and can be obtained from http://gasp.coresecurity.com/. The present implementation protects PHP 5.2.3 against SQL-injection attacks for the MySQL engine, it can be installed with almost the same effort as the PHP engine, both in Unix and Windows systems, and protection is immediate with any PHP web application running in the protected server. CORE GRASP works by enhancing the PHP execution engine (VM) to permit byte-level taint tracking and analysis for all the user-controlled or otherwise untrustable variables of the web application. Tainted bytes are then tracked and their taint marks propagated throughout the web application's runtime. Whenever the web application tries to interact with an DB backend using SQL statements that contain tainted bytes, GRASP analyzes the statment and detects and prevents attacks or abnormal actions. CORE GRASP was developed by CoreLabs, the research unit of Core Security Technologies. At CoreLabs, we plan to improve the tool and include new protections shortly. However, the invitation to collaborate with the project is open. If you would like to collaborate, please go to the GRASP website and subscribe to our mailing list. Project home: http://grasp.coresecurity.com/ Documentation, presentation and papers: http://grasp.coresecurity.com/index.php?m=doc Download: http://grasp.coresecurity.com/index.php?m=dld ------------------------------------------------------------------------- Sponsored by: Watchfire The Twelve Most Common Application-level Hack Attacks Hackers continue to add billions to the cost of doing business online despite security executives' efforts to prevent malicious attacks. This whitepaper identifies the most common methods of attacks that we have seen, and outlines a guideline for developing secure web applications. Download today! https://www.watchfire.com/securearea/whitepapers.aspx?id=701500000008rSe --------------------------------------------------------------------------
------------------------------------------------------------------------- Sponsored by: Watchfire The Twelve Most Common Application-level Hack Attacks Hackers continue to add billions to the cost of doing business online despite security executives' efforts to prevent malicious attacks. This whitepaper identifies the most common methods of attacks that we have seen, and outlines a guideline for developing secure web applications. Download today! https://www.watchfire.com/securearea/whitepapers.aspx?id=701500000008rSe --------------------------------------------------------------------------
Current thread:
- Announcement: Releasing CORE GRASP for PHP. An open source, dynamic web application protection system. Ezequiel Gutesman (Aug 22)
- Re: Announcement: Releasing CORE GRASP for PHP. An open source, dynamic web application protection system. Serg B. (Aug 22)
- Re: Announcement: Releasing CORE GRASP for PHP. An open source, dynamic web application protection system. Ezequiel Gutesman (Aug 29)
- Re: Announcement: Releasing CORE GRASP for PHP. An open source, dynamic web application protection system. Serg B. (Aug 22)