CVE-2019-5440
CVSS V2 Medium 6.8
CVSS V3 High 8.1
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.
Overview
- CVE ID
- CVE-2019-5440
- Assigner
- support@hackerone.com
- Vulnerability Status
- Modified
- Published Version
- 2019-05-28T19:29:06
- Last Modified Date
- 2019-10-09T23:50:52
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:* | 1 | OR | 4.2.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.1
- Base Severity
- HIGH
- Exploitability Score
- 2.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://hackerone.com/reports/576504 | Exploit Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-5440 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5440 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:02:31 | Added to TrackCVE | |||
| 2022-12-03 21:23:58 | cve-assignments@hackerone.com | support@hackerone.com | CVE Assigner | updated |
| 2022-12-03 21:23:58 | 2019-05-28T19:29Z | 2019-05-28T19:29:06 | CVE Published Date | updated |
| 2022-12-03 21:23:58 | 2019-10-09T23:50:52 | CVE Modified Date | updated | |
| 2022-12-03 21:23:58 | Modified | Vulnerability Status | updated |