VulnerabilityModified
CVE-2015-8023
The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message…
MEDIUM 5.0EPSS 2.58%
Does this matter?
Lower severity and a low EPSS score (2.58%). Track it; it rarely justifies an emergency change on its own.
Description
The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
- EPSS
- 2.58% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-264
- Affected
- canonical/ubuntu linux · strongswan/strongswan
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html
- http://www.debian.org/security/2015/dsa-3398
- http://www.securityfocus.com/bid/84947
- http://www.ubuntu.com/usn/USN-2811-1
- https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html
- http://www.debian.org/security/2015/dsa-3398
- http://www.securityfocus.com/bid/84947
- http://www.ubuntu.com/usn/USN-2811-1
- https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.