Vulnerability Details 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 in response to an initial Challenge message.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 65.4%
CVSS Severity
CVSS v2 Score 5.0
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
Products affected by CVE-2015-8023
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cpe:2.3:a:strongswan:strongswan:4.2.12
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cpe:2.3:a:strongswan:strongswan:4.2.13
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cpe:2.3:a:strongswan:strongswan:4.2.14
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cpe:2.3:a:strongswan:strongswan:4.2.15
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cpe:2.3:a:strongswan:strongswan:4.2.16
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cpe:2.3:a:strongswan:strongswan:4.3.0
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cpe:2.3:a:strongswan:strongswan:4.3.1
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cpe:2.3:a:strongswan:strongswan:4.3.2
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cpe:2.3:a:strongswan:strongswan:4.3.3
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cpe:2.3:a:strongswan:strongswan:4.3.4
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cpe:2.3:a:strongswan:strongswan:4.3.5
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cpe:2.3:a:strongswan:strongswan:4.3.6
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cpe:2.3:a:strongswan:strongswan:4.3.7
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cpe:2.3:a:strongswan:strongswan:4.4.0
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cpe:2.3:a:strongswan:strongswan:4.4.1
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cpe:2.3:a:strongswan:strongswan:4.5.0
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cpe:2.3:a:strongswan:strongswan:4.5.1
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cpe:2.3:a:strongswan:strongswan:4.5.2
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cpe:2.3:a:strongswan:strongswan:4.5.3
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cpe:2.3:a:strongswan:strongswan:4.6.0
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cpe:2.3:a:strongswan:strongswan:4.6.1
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cpe:2.3:a:strongswan:strongswan:4.6.2
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cpe:2.3:a:strongswan:strongswan:4.6.3
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cpe:2.3:a:strongswan:strongswan:4.6.4
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cpe:2.3:a:strongswan:strongswan:5.0.0
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cpe:2.3:a:strongswan:strongswan:5.0.1
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cpe:2.3:a:strongswan:strongswan:5.0.2
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cpe:2.3:a:strongswan:strongswan:5.0.3
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cpe:2.3:a:strongswan:strongswan:5.0.4
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cpe:2.3:a:strongswan:strongswan:5.1.0
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cpe:2.3:a:strongswan:strongswan:5.1.1
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cpe:2.3:a:strongswan:strongswan:5.1.2
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cpe:2.3:a:strongswan:strongswan:5.1.3
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cpe:2.3:a:strongswan:strongswan:5.2.0
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cpe:2.3:a:strongswan:strongswan:5.2.1
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cpe:2.3:a:strongswan:strongswan:5.2.2
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cpe:2.3:a:strongswan:strongswan:5.2.3
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cpe:2.3:a:strongswan:strongswan:5.3.0
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cpe:2.3:a:strongswan:strongswan:5.3.1
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cpe:2.3:a:strongswan:strongswan:5.3.2
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cpe:2.3:a:strongswan:strongswan:5.3.3
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cpe:2.3:o:canonical:ubuntu_linux:14.04
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cpe:2.3:o:canonical:ubuntu_linux:15.04
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cpe:2.3:o:canonical:ubuntu_linux:15.10