Listen to this Post
The vulnerability in pgAdmin versions up to and including 9.9 stems from improper neutralization of special elements within LDAP queries. The LDAP authentication flow does not adequately sanitize user-supplied input in the username field. An attacker can exploit this by supplying a username containing special LDAP meta-characters, such as parentheses, asterisks, or semicolons. This unsanitized input is then incorporated directly into an LDAP query destined for the Domain Controller (DC) or LDAP server. By crafting a malicious username payload, an attacker can modify the structure and intent of the query. This can cause the server to perform complex, nested, or resource-intensive searches, consuming significant CPU and memory resources. The primary consequence is a Denial-of-Service (DoS) condition, where the LDAP server becomes unresponsive to legitimate authentication requests, disrupting service availability for all users relying on that directory service.
Platform: pgAdmin
Version: <= 9.9
Vulnerability: LDAP Injection
Severity: High
date: 2025-11-13
Prediction: Patch by 2025-11-27
What Undercode Say:
ldapsearch -x -H ldap://your-server -b "dc=example,dc=com" "(&(objectClass=user)(uid=))"
Example unsanitized input leading to LDAP Injection
username = "admin)(objectClass=))(&(uid="
ldap_query = f"(&(objectClass=user)(uid={username}))"
How Exploit:
Malicious username input.
Modifies LDAP query logic.
Triggers intensive server-side search.
Causes Denial-of-Service.
Protection from this CVE
Input sanitization for LDAP.
Use parameterized LDAP queries.
Update pgAdmin post-patch.
Impact:
LDAP server resource exhaustion.
Authentication service disruption.
Potential system unavailability.
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
