CVEvulnerability
CVE-2015-8023
5.0 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2015-11-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-20, CWE-264
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.
Affected configurations
• canonical ubuntu linux 14.04
• canonical ubuntu linux 15.04
• canonical ubuntu linux 15.10
• strongswan strongswan 4.2.12
• strongswan strongswan 4.2.13
• strongswan strongswan 4.2.14
• strongswan strongswan 4.2.15
• strongswan strongswan 4.2.16
• strongswan strongswan 4.3.0
• strongswan strongswan 4.3.1
• strongswan strongswan 4.3.2
• strongswan strongswan 4.3.3
• strongswan strongswan 4.3.4
• strongswan strongswan 4.3.5
• strongswan strongswan 4.3.6
• strongswan strongswan 4.3.7
• strongswan strongswan 4.4.0
• strongswan strongswan 4.4.1
• strongswan strongswan 4.5.0
• strongswan strongswan 4.5.1
• strongswan strongswan 4.5.2
• strongswan strongswan 4.5.3
• strongswan strongswan 4.6.0
• strongswan strongswan 4.6.1
• strongswan strongswan 4.6.2
• strongswan strongswan 4.6.3
• strongswan strongswan 4.6.4
• strongswan strongswan 5.0.0
• strongswan strongswan 5.0.1
• strongswan strongswan 5.0.2
• strongswan strongswan 5.0.3
• strongswan strongswan 5.0.4
• strongswan strongswan 5.1.0
• strongswan strongswan 5.1.1
• strongswan strongswan 5.1.2
• strongswan strongswan 5.1.3
• strongswan strongswan 5.2.0
• strongswan strongswan 5.2.1
• strongswan strongswan 5.2.2
• strongswan strongswan 5.2.3
• strongswan strongswan 5.3.0
• strongswan strongswan 5.3.1
• strongswan strongswan 5.3.2
• strongswan strongswan 5.3.3
Related
Weakness · not in database (1)
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html lists.opensuse.org
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html lists.opensuse.org
- http://www.debian.org/security/2015/dsa-3398 www.debian.org
- http://www.securityfocus.com/bid/84947 www.securityfocus.com
- http://www.ubuntu.com/usn/USN-2811-1 www.ubuntu.com
- https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html www.strongswan.org
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html lists.opensuse.org
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html lists.opensuse.org
- http://www.debian.org/security/2015/dsa-3398 www.debian.org
- http://www.securityfocus.com/bid/84947 www.securityfocus.com
- http://www.ubuntu.com/usn/USN-2811-1 www.ubuntu.com
- https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html www.strongswan.org