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CVE-2019-5440

N/A
Published: May 28, 2019 at 06:41 PM UTC
Updated: June 17, 2026 at 02:37 AM UTC
1 product affected across 1 vendorRevive Adserver

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Severity
N/A
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Revive Adserver· Revive Adserver
95%
v < 4.2.1
Vendor states this is fixed in 4.2.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/576504

CVSS

6.8MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-338

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