// For flags

CVE-2019-5440

 

Severity Score

8.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

El uso de PRNG (Generador de Numeros PseudoRandom) PRNG criptográficamente débil en la generación de token de recuperación de contraseña de Revive Adserver anterior a la versión 4.2.1, provoca un potencial ataque de omisión de autenticación si un atacante explota la funcionalidad de recuperación de contraseña (password recovery).

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-01-04 CVE Reserved
  • 2019-05-28 CVE Published
  • 2023-05-04 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CAPEC
References (1)
URL Tag Source
URL Date SRC
https://hackerone.com/reports/576504 2024-08-04
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Revive-adserver
Search vendor "Revive-adserver"
Revive Adserver
Search vendor "Revive-adserver" for product "Revive Adserver"
< 4.2.1
Search vendor "Revive-adserver" for product "Revive Adserver" and version " < 4.2.1"
-
Affected