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  public void doPrivilegedAction(String username, char[] password) throws SQLException {
    Connection connection = getConnection();
    if (connection == null) {
      // handle error
    }
    String pwd = hashPassword(password);

    // Ensure that the length of user name is legitimate
    if ((username.length() > 8) {
      // Handle error
    }

    String sqlString = "select * from db_user where username=? and password=?";
    PreparedStatement stmt = connection.prepareStatement(sqlString);
    stmt.setString(1, username);
    stmt.setString(2, pwd);
    ResultSet rs = stmt.executeQuery();
    if (!rs.next()) {
      throw new SecurityException("User name or password incorrect");
    }

    // Authenticated; proceed
  }

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CERT C Secure Coding Standard	STR02-C. Sanitize data passed to complex subsystems
CERT C++ Secure Coding Standard	STR02-CPP. Sanitize data passed to complex subsystems
CVE-2008-2370	describes a vulnerability in Apache Tomcat 4.1.0 through 4.1.37, 5.5.0 through 5.5.26, and 6.0.0 through 6.0.16. When a `RequestDispatcher` is used, Tomcat performs path normalization before removing the query string from the URI, which allows remote attackers to conduct directory traversal attacks and read arbitrary files via a .. (dot dot) in a request parameter.
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="92b1bbda04f41627-f0eb6a19-43a34cda-b6d18d41-1c2410693cc716e83765b4fa"><ac:plain-text-body><![CDATA[	[ISO/IEC TR 24772:2010	http://www.aitcnet.org/isai/]	"Injection [RST]"	]]></ac:plain-text-body></ac:structured-macro>
MITRE CWE	CWE-116, "Improper Encoding or Escaping of Output"

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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="dc7da91b0db258c3-f98b2af2-4ae3427a-92e6be2a-78b0e8e42d755bda4f8eee74"><ac:plain-text-body><![CDATA[	[[OWASP 2005	AA. Bibliography#OWASP 05]]		]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="7a3208c8699a53de-58c9203c-4c2c450f-917f8fcc-105d2d42e77a010c1ad713fe"><ac:plain-text-body><![CDATA[	[[OWASP 2007	AA. Bibliography#OWASP 07]]		]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="c6f2b0c37bd0ef57-530df049-49a744b7-953fa4e5-098655a38a96928e374c8b22"><ac:plain-text-body><![CDATA[	[[OWASP 2008	AA. Bibliography#OWASP 08]]	[Testing for XML Injection (OWASP-DV-008)	https://www.owasp.org/index.php/Testing_for_XML_Injection_%28OWASP-DV-008%29]	]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="204d93e116970ab8-0418e2d6-4c494ed7-b38aaa5f-36c30d3847120c962dd7e480"><ac:plain-text-body><![CDATA[	[[W3C 2008	AA. Bibliography#W3C 08]]	4.4.3 Included If Validating	]]></ac:plain-text-body></ac:structured-macro>

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