CVE-2019-5440

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 v3 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3 : HIGH

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://hackerone.com/reports/576504	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-05-28 19:29

Updated : 2024-02-28 17:08

NVD link : CVE-2019-5440

Mitre link : CVE-2019-5440

CVE.ORG link : CVE-2019-5440

JSON object : View

Products Affected

revive-adserver

revive_adserver

CWE

CWE-338

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

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