CVE-2019-5440
8.1 · HIGHOverview
CVE-2019-5440 is a high-severity vulnerability affecting revive-adserver revive_adserver. It was published on May 28, 2019 and has a CVSS 3.0 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Use of cryptographically weak PRNG in the password recovery token generation of Revive Adserver < v4.2.1 causes a potential authentication bypass attack if an attacker exploits the password recovery functionality. In lib/OA/Dal/PasswordRecovery.php, the function generateRecoveryId() generates a password reset token that relies on the PHP uniqid function and consequently depends only on the current server time, which is often visible in an HTTP Date header.
Remediation
Check the references section for vendor advisories and patches from revive-adserver. Update revive_adserver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| revive-adserver | revive_adserver | >= 0, < 4.2.1 | Affected |
Frequently Asked Questions
What is CVE-2019-5440?
CVE-2019-5440 is a high-severity vulnerability affecting revive-adserver revive_adserver. It was published on May 28, 2019 and has a CVSS 3.0 base score of 8.1 (HIGH).
How severe is CVE-2019-5440?
This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-5440?
Check the references section for vendor advisories and patches from revive-adserver. Update revive_adserver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-5440?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-5440 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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