Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Risk

7/31/2007
01:19 AM
Connect Directly
Twitter
RSS
E-Mail
50%
50%

Tool Stops XSS, SQL Injection Attacks

Core Labs researchers to release free tool to protect PHP-based Web apps

LAS VEGAS -- Black Hat USA -- A pair of researchers here this week will release a Web application security tool that blocks SQL injection and cross-site scripting (XSS) attacks on the fly.

Core Security Technologies's Core Labs researchers Ezequiel Gutesman and Ariel Waissbein will demonstrate the tool -- specifically for PHP-based Web applications -- during their Black Hat session, "A Dynamic Technique for Enhancing the Security and Privacy of Web Applications," here on Thursday.

Ivan Arce, CTO of Core Security, says the tool, called GRASP, blocks attacks using a run-time "taint analysis" technique that examines the application's data and doesn’t require any rewriting of the app's code. "It's not easy to fix all the bugs" in a Web application, Arce says. The tool works at the "byte level," so Web developers don't have to change the source code for each application, he says.

"As far as we know, there's nothing like this for PHP," he says. "There are so many PHP applications out there that are riddled with vulnerabilities, so we looked at PHP first."

Core has no plans to productize the tool, nor to extend it to other Web development platforms. But the same concepts can be applied to protecting apps on platforms other than PHP, Arce says. "It sees changes to the PHP engine. It blocks [activity] that's not allowed."

Arce says the new tool is different from typical penetration testing tools because it's attached to the executable environment itself. "It's a defensive technology for PHP-based Web applications."

GRASP analyzes how attacks behave, logs them, and blocks unauthorized operations. It's more powerful than Web application firewalls, which use signatures to block known exploits and often generate false positives, Arce says.

"We [want] people in the community to pick this tool up and deploy it in their Web environments to protect their PHP applications," Arce says. "It's also a tool to research Web app security, too... to spot weaknesses in your application or to identify attack vectors."

— Kelly Jackson Higgins, Senior Editor, Dark Reading

  • Core Security Technologies
  • Black Hat Inc. Kelly Jackson Higgins is the Executive Editor of Dark Reading. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio

    Comment  | 
    Print  | 
    More Insights
  • Comments
    Newest First  |  Oldest First  |  Threaded View
    Commentary
    Ransomware Is Not the Problem
    Adam Shostack, Consultant, Entrepreneur, Technologist, Game Designer,  6/9/2021
    Edge-DRsplash-11-edge-ask-the-experts
    How Can I Test the Security of My Home-Office Employees' Routers?
    John Bock, Senior Research Scientist,  6/7/2021
    News
    New Ransomware Group Claiming Connection to REvil Gang Surfaces
    Jai Vijayan, Contributing Writer,  6/10/2021
    Register for Dark Reading Newsletters
    White Papers
    Video
    Cartoon Contest
    Write a Caption, Win an Amazon Gift Card! Click Here
    Latest Comment: Google's new See No Evil policy......
    Current Issue
    The State of Cybersecurity Incident Response
    In this report learn how enterprises are building their incident response teams and processes, how they research potential compromises, how they respond to new breaches, and what tools and processes they use to remediate problems and improve their cyber defenses for the future.
    Flash Poll
    How Enterprises are Developing Secure Applications
    How Enterprises are Developing Secure Applications
    Recent breaches of third-party apps are driving many organizations to think harder about the security of their off-the-shelf software as they continue to move left in secure software development practices.
    Twitter Feed
    Dark Reading - Bug Report
    Bug Report
    Enterprise Vulnerabilities
    From DHS/US-CERT's National Vulnerability Database
    CVE-2021-31664
    PUBLISHED: 2021-06-18
    RIOT-OS 2021.01 before commit 44741ff99f7a71df45420635b238b9c22093647a contains a buffer overflow which could allow attackers to obtain sensitive information.
    CVE-2021-33185
    PUBLISHED: 2021-06-18
    SerenityOS contains a buffer overflow in the set_range test in TestBitmap which could allow attackers to obtain sensitive information.
    CVE-2021-33186
    PUBLISHED: 2021-06-18
    SerenityOS in test-crypto.cpp contains a stack buffer overflow which could allow attackers to obtain sensitive information.
    CVE-2021-31272
    PUBLISHED: 2021-06-18
    SerenityOS before commit 3844e8569689dd476064a0759d704bc64fb3ca2c contains a directory traversal vulnerability in tar/unzip that may lead to command execution or privilege escalation.
    CVE-2021-31660
    PUBLISHED: 2021-06-18
    RIOT-OS 2021.01 before commit 85da504d2dc30188b89f44c3276fc5a25b31251f contains a buffer overflow which could allow attackers to obtain sensitive information.