CVE-2019-13456

freeradius: eap-pwd: Information leak due to aborting when needing more than 10 iterations

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En FreeRADIUS versiones 3.0 hasta 3.0.19, en promedio 1 de cada 2048 protocolos de enlace EAP-pwd presenta un fallo porque el elemento de contraseña no puede ser encontrado dentro de las 10 iteraciones del bucle de tipo "hunting and pecking". Esto filtra información que un atacante puede utilizar para recuperar la contraseña de cualquier usuario. Este filtrado de información es similar al ataque "Dragonblood" y al CVE-2019-9494.

An information leak was discovered in the implementation of EAP-pwd in freeradius. An attacker could initiate several EAP-pwd handshakes to leak information, which can then be used to recover the user's WiFi password by performing dictionary and brute-force attacks.

*Credits: N/A

CVSS Scores

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Adjacent

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-07-09 CVE Reserved
2019-12-03 CVE Published
2023-03-07 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-203: Observable Discrepancy

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1737663	2024-08-04
https://wpa3.mathyvanhoef.com	2024-08-04

URL	Date	SRC
https://github.com/FreeRADIUS/freeradius-server/commit/3ea2a5a026e73d81cd9a3e9bbd4300c433004bfa	2022-01-01

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html	2022-01-01
https://freeradius.org/security	2022-01-01
https://access.redhat.com/security/cve/CVE-2019-13456	2020-09-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freeradius Search vendor "Freeradius"	Freeradius Search vendor "Freeradius" for product "Freeradius"	>= 3.0.0 <= 3.0.19 Search vendor "Freeradius" for product "Freeradius" and version " >= 3.0.0 <= 3.0.19"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected