Executing an LDAP statement that contains a user-controlled value outside the filter string can allow an attacker to alter the statement's meaning or execute arbitrary LDAP commands.
LDAP manipulation errors occur when:
1. Data enters a program from an untrusted source.
2. The data is used outside the filter string in a dynamic LDAP statement.
Example 1: The following code reads a username and password from an HTTP request and uses it to perform an LDAP lookup.
env.put(Context.SECURITY_AUTHENTICATION, "none");
DirContext ctx = new InitialDirContext(env);
String empID = request.getParameter("empID");
try
{
BasicAttribute attr = new BasicAttribute("empID", empID);
NamingEnumeration employee =
ctx.search("ou=People,dc=example,dc=com",attr);
...
[1] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A1 Unvalidated Input
[2] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A2 Broken Access Control
[3] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A4 Insecure Direct Object Reference
[4] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A4 Insecure Direct Object References
[5] Standards Mapping - FIPS200 - (FISMA) AC
[6] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3510 CAT I
[7] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 639
[8] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 90
[9] Standards Mapping - SANS Top 25 2009 - (SANS 2009) Insecure Interaction - CWE ID 116
[10] Standards Mapping - Web Application Security Consortium 24 + 2 - (WASC 24 + 2) Insufficient Authorization
[11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 6.3.1.1
[12] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 6.5.1
[13] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 6.5.2
[14] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 6.5.4
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 6.5.8
[16] Standards Mapping - FIPS200 - (FISMA) SI