FreeRADIUS up to 3.0.19 EAP-PWD eap_pwd.c Password information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability was found in FreeRADIUS up to 3.0.19 (Network Authentication Software). It has been classified as problematic. This affects some unknown functionality of the file rlm_eap/types/rlm_eap_pwd/eap_pwd.c of the component EAP-PWD. The manipulation with an unknown input leads to a information disclosure vulnerability (Password). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

rlm_eap/types/rlm_eap_pwd/eap_pwd.c in the EAP-pwd implementation in FreeRADIUS before 3.0.20 allows remote attackers to discover passwords because there is a side-channel information leak associated with the Hunting and Pecking abort for excessive iterations.

The weakness was published 03/18/2020. This vulnerability is uniquely identified as CVE-2019-20510 since 03/18/2020. The exploitability is told to be difficult. It is possible to initiate the attack remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 3.0.20 eliminates this vulnerability.

Similar entry is available at VDB-146605.






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍


Name: Password
Class: Information disclosure / Password
CWE: CWE-200 / CWE-284 / CWE-266

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FreeRADIUS 3.0.20


03/18/2020 🔍
03/18/2020 +0 days 🔍
03/18/2020 +0 days 🔍
04/17/2024 +1491 days 🔍


Status: Not defined

CVE: CVE-2019-20510 (🔍)
See also: 🔍


Created: 03/18/2020 08:11 AM
Updated: 04/17/2024 09:19 AM
Changes: 03/18/2020 08:11 AM (38), 03/18/2020 08:16 AM (4), 04/17/2024 09:19 AM (17)
Complete: 🔍
Cache ID: 3:C14:40


No comments yet. Languages: en.

Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!