[REVS] Second Order Code Injection Attacks

From: SecuriTeam (support_at_securiteam.com)
Date: 11/03/04

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Date: 3 Nov 2004 17:12:09 +0200

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      Second Order Code Injection Attacks
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    SUMMARY

    Presented below is an abstract for a whitepaper exploring the
    possibilities in second order code injection attacks and their
    applications.

    DETAILS

    Abstract
    "Many forms of code injection targeted at web-based applications (for
    instance cross-site scripting and SQL injection) rely upon the
    instantaneous execution of the embedded code to carry out the attack (e.g.
    stealing a user's current session information or executing a modified SQL
    query). In some cases it may be possible for an attacker to inject their
    malicious code into a data storage area that may be executed at a later
    date or time. Depending upon the nature of the application and the way the
    malicious data is stored or rendered, the attacker may be able to conduct
    a second-order code injection attack.

    A second-order code injection attack can be classified as the process in
    which malicious code is injected into a web-based application and not
    immediately executed, but instead is stored by the application (e.g.
    temporarily cached, logged, stored in a database) and then later
    retrieved, rendered and executed by the victim."

    The full article can be viewed online:
    <http://www.nextgenss.com/papers/SecondOrderCodeInjection.pdf> Second
    Order Code Injection Attacks

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:gunter@ngssoftware.com>
    Gunter Ollmann.
    The original article can be found at:
    <http://www.nextgenss.com/papers/SecondOrderCodeInjection.pdf>
    http://www.nextgenss.com/papers/SecondOrderCodeInjection.pdf

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