CVE-2019-16180 : What You Need to Know
Learn about CVE-2019-16180, a security flaw in Limesurvey versions prior to 3.17.14 allowing remote attackers to conduct brute force attacks on the login form, potentially exposing valid usernames.
Limesurvey before version 3.17.14 is vulnerable to a brute force attack on the login form, allowing remote attackers to enumerate usernames, particularly when LDAP authentication is in use.
Understanding CVE-2019-16180
This CVE entry describes a security vulnerability in Limesurvey that enables attackers to exploit the login form.
What is CVE-2019-16180?
CVE-2019-16180 is a vulnerability in Limesurvey versions prior to 3.17.14 that permits remote attackers to conduct a brute force attack on the login form, potentially revealing valid usernames, especially when LDAP authentication is enabled.
The Impact of CVE-2019-16180
The vulnerability can lead to unauthorized access to the system, compromise user accounts, and potentially expose sensitive information.
Technical Details of CVE-2019-16180
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability in Limesurvey allows remote attackers to perform a brute force attack on the login form, potentially leading to the enumeration of valid usernames, particularly when LDAP authentication is utilized.
Affected Systems and Versions
- Product: Limesurvey
- Versions Affected: Versions prior to 3.17.14
Exploitation Mechanism
- Attackers exploit the vulnerability by repeatedly attempting different username and password combinations on the login form, aiming to discover valid usernames.
Mitigation and Prevention
Protecting systems from CVE-2019-16180 requires immediate action and long-term security measures.
Immediate Steps to Take
- Upgrade Limesurvey to version 3.17.14 or newer to mitigate the vulnerability.
- Disable LDAP authentication if not essential for system operations.
Long-Term Security Practices
- Implement strong password policies to prevent successful brute force attacks.
- Regularly monitor and audit login attempts for suspicious activities.
Patching and Updates
- Stay informed about security updates and patches released by Limesurvey to address vulnerabilities like CVE-2019-16180.