9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
0.002 Low
EPSS
Percentile
52.4%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | strongswan | < 5.6.2-1ubuntu2.8 | UNKNOWN |
ubuntu | 20.04 | noarch | strongswan | < 5.8.2-1ubuntu3.4 | UNKNOWN |
ubuntu | 21.10 | noarch | strongswan | < 5.9.1-1ubuntu3.2 | UNKNOWN |
ubuntu | 14.04 | noarch | strongswan | < 5.1.2-0ubuntu2.11+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | strongswan | < 5.3.5-1ubuntu3.8+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 22.04 | noarch | strongswan | < 5.9.4-1ubuntu4 | UNKNOWN |
ubuntu | 22.10 | noarch | strongswan | < 5.9.4-1ubuntu4 | UNKNOWN |
ubuntu | 23.04 | noarch | strongswan | < 5.9.4-1ubuntu4 | UNKNOWN |
ubuntu | 23.10 | noarch | strongswan | < 5.9.4-1ubuntu4 | UNKNOWN |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45079
github.com/strongswan/strongswan/releases/tag/5.9.5
launchpad.net/bugs/cve/CVE-2021-45079
nvd.nist.gov/vuln/detail/CVE-2021-45079
security-tracker.debian.org/tracker/CVE-2021-45079
ubuntu.com/security/notices/USN-5250-1
ubuntu.com/security/notices/USN-5250-2
www.strongswan.org/blog/2022/01/24/strongswan-vulnerability-(cve-2021-45079).html
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
0.002 Low
EPSS
Percentile
52.4%