[Full-disclosure] [AppSecInc Team SHATTER Security Advisory] Multiple SQL Injection vulnerabilities in DBMS_CDC_SUBSCRIBE and DBMS_CDC_ISUBSCRIBE packages

From: Team SHATTER (shatter_at_appsecinc.com)
Date: 04/18/05

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    Date: Mon, 18 Apr 2005 15:03:12 -0400
To: bugtraq@securityfocus.com

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    Multiple SQL Injection vulnerabilities in DBMS_CDC_SUBSCRIBE and
    DBMS_CDC_ISUBSCRIBE packages

    AppSecInc Team SHATTER Security Advisory
    http://www.appsecinc.com/resources/alerts/oracle/2005-02.html
    April 18, 2005

    Affected Versions: Oracle Database Server version 10g

    Risk level: High

    Credits: This vulnerability was discovered and researched by Esteban
    Martínez Fayó of Argeniss for Application Security Inc.

    Details:
    The SUBSCRIPTION_NAME parameter -- used in various procedures of
    SYS.DBMS_CDC_SUBSCRIBE and SYS.DBMS_CDC_ISUBSCRIBE packages -- is
    vulnerable to SQL injection. These packages execute with privileges of
    the SYS user; by default, PUBLIC has EXECUTE privilege.

    Impact:
    Any low privileged database user can execute functions with DBA
    privileges. Users with privilges to create or modify a function can
    inject a user-defined function in the vulnerable procedure and thus
    execute SQL statements with DBA privileges.

    Workaround:
    Revoke Execute privilege on the vulnerable packages.

    Vendor Status:
    Vendor was contacted and a patch was released.

    Fix:
    Apply Oracle Critical Patch Update April 2005 available at
    http://metalink.oracle.com

    Links:
    Application Security, Inc advisory:
    http://www.appsecinc.com/resources/alerts/oracle/2005-02.html
    Oracle security alert:
    http://www.oracle.com/technology/deploy/security/pdf/cpuapr2005.pdf
    Advanced SQL Injection in Oracle databases presentation:
    http://www.argeniss.com/research.html

    - --
    _____________________________________________
    Application Security, Inc.
    www.appsecinc.com
    AppSecInc is the leading provider of database security solutions for the
    enterprise. AppSecInc products proactively secure enterprise
    applications at more than 300 organizations around the world by
    discovering, assessing, and protecting the database against rapidly
    changing security threats. By securing data at its source, we enable
    organizations to more confidently extend their business with customers,
    partners and suppliers. Our security experts, combined with our strong
    support team, deliver up-to-date application safeguards that minimize
    risk and eliminate its impact on business.

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