FreeRADIUS up to 3.0.19 EAP-pwd Handshake information disclosure

Summaryinfo

A vulnerability marked as problematic has been reported in FreeRADIUS. This affects an unknown function of the component EAP-pwd Handshake Handler. This manipulation causes information disclosure. This vulnerability is registered as CVE-2019-13456. The attack requires access to the local network. No exploit is available.

Detailsinfo

A vulnerability has been found in FreeRADIUS (Network Authentication Software) and classified as problematic. Affected by this vulnerability is an unknown code of the component EAP-pwd Handshake Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

In FreeRADIUS 3.0 through 3.0.19, on average 1 in every 2048 EAP-pwd handshakes fails because the password element cannot be found within 10 iterations of the hunting and pecking loop. This leaks information that an attacker can use to recover the password of any user. This information leakage is similar to the "Dragonblood" attack and CVE-2019-9494.

The weakness was published 12/03/2019. This vulnerability is known as CVE-2019-13456 since 07/09/2019. The attack needs to be initiated within the local network. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 291748 (MiracleLinux 7 : freeradius-3.0.13-15.el7 (AXSA:2020-624:01)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (291748). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Network Authentication Software

Name

• FreeRADIUS

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10
• 3.0.11
• 3.0.12
• 3.0.13
• 3.0.14
• 3.0.15
• 3.0.16
• 3.0.17
• 3.0.18
• 3.0.19

License

• open-source

CPE 2.3info

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CPE 2.2info

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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