Is CVE-2019-5440 actively exploited?

CVE-2019-5440 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2019-5440?

CVE-2019-5440 has a CVSS score of 8.1 (HIGH severity). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2019-5440?

Patch guidance is available from revive-adserver security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2019-5440.

Which products are affected by CVE-2019-5440?

1 product: revive-adserver revive adserver.

Fix CVE-2019-5440 - HIGH revive-adserver revive adserver

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.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-338 CWE-338

Metadata

Primary Vendor: REVIVE-ADSERVER
Published: 5/28/2019
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2019-5440

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary