CVE-2019-13456

Published: 3 December 2019

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.

Priority

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package	Release	Status
freeradius Launchpad, Ubuntu, Debian	bionic	Not vulnerable (3.0.16+dfsg-1ubuntu3.1)
	disco	Not vulnerable (3.0.17+dfsg-1ubuntu2.1)
	trusty	Does not exist
	upstream	Released (3.0.17+dfsg-1.1)
	xenial	Not vulnerable (code not present)

Severity score breakdown

Parameter	Value
Base score	6.5
Attack vector	Adjacent
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

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