CVE-2021-45079

Published: 24 January 2022

In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.

Priority

Cvss 3 Severity Score

9.1

Score breakdown

Status

Package	Release	Status
strongswan Launchpad, Ubuntu, Debian	bionic	Released (5.6.2-1ubuntu2.8)
	focal	Released (5.8.2-1ubuntu3.4)
	hirsute	Ignored (reached end-of-life)
	impish	Released (5.9.1-1ubuntu3.2)
	jammy	Released (5.9.4-1ubuntu4)
	kinetic	Released (5.9.4-1ubuntu4)
	lunar	Released (5.9.4-1ubuntu4)
	trusty	Released (5.1.2-0ubuntu2.11+esm2)
	upstream	Released (5.9.5)
	xenial	Released (5.3.5-1ubuntu3.8+esm2)

Severity score breakdown

Parameter	Value
Base score	9.1
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References

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