CVE-2021-45079

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 31-01-2022 09:15

Last modified: - 14-06-2022 04:38

Total changes: - 3

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

High

Confidentiality

None

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

9.1

Base score

3.9

5.2

Exploitability score

Impact score

Verification logic

vendor=strongswan AND product=strongswan AND versionStartIncluding=4.1.2 AND versionEndExcluding=5.9.5

vendor=Debian AND product=debian_linux AND version=9.0

vendor=Debian AND product=debian_linux AND version=10.0

vendor=Debian AND product=debian_linux AND version=11.0

vendor=fedoraproject AND product=fedora AND version=34

vendor=fedoraproject AND product=extra_packages_for_enterprise_linux AND version=8.0

vendor=fedoraproject AND product=fedora AND version=35

vendor=fedoraproject AND product=extra_packages_for_enterprise_linux AND version=9.0

vendor=fedoraproject AND product=extra_packages_for_enterprise_linux AND version=7.0

vendor=canonical AND product=ubuntu_linux AND version=18.04 AND software_edition=lts

vendor=canonical AND product=ubuntu_linux AND version=14.04 AND software_edition=esm

vendor=canonical AND product=ubuntu_linux AND version=20.04 AND software_edition=lts

vendor=canonical AND product=ubuntu_linux AND version=16.04 AND software_edition=esm

vendor=canonical AND product=ubuntu_linux AND version=21.10

Reference

https://www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-(cve-2021-45079).html

Keywords

CVE-2021-45079

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-45079

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures