Unrated severityNVD Advisory· Published Nov 18, 2015· Updated Jun 17, 2026
CVE-2015-8023
CVE-2015-8023
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
59cpe:2.3:a:strongswan:strongswan:4.2.12:*:*:*:*:*:*:*+ 41 more
- cpe:2.3:a:strongswan:strongswan:4.2.12:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.2.13:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.2.14:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.2.15:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.2.16:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:4.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:5.3.3:*:*:*:*:*:*:*
- (no CPE)range: >=4.2.12, <5.3.4
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*+ 2 more
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- osv-coords14 versionspkg:rpm/opensuse/strongswan&distro=openSUSE%20Tumbleweedpkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP3pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Desktop%2011%20SP4pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Desktop%2012pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%2012pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP3pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012pkg:rpm/suse/strongswan&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1
< 5.3.5-1.1+ 13 more
- (no CPE)range: < 5.3.5-1.1
- (no CPE)range: < 4.4.0-6.32.1
- (no CPE)range: < 4.4.0-6.32.1
- (no CPE)range: < 5.1.3-22.1
- (no CPE)range: < 5.1.3-22.1
- (no CPE)range: < 4.4.0-6.32.1
- (no CPE)range: < 4.4.0-6.32.1
- (no CPE)range: < 4.4.0-6.32.1
- (no CPE)range: < 5.1.3-22.1
- (no CPE)range: < 5.1.3-22.1
- (no CPE)range: < 4.4.0-6.32.1
- (no CPE)range: < 4.4.0-6.32.1
- (no CPE)range: < 5.1.3-22.1
- (no CPE)range: < 5.1.3-22.1
Patches
Vulnerability mechanics
References
6- lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.htmlnvd
- lists.opensuse.org/opensuse-updates/2015-11/msg00139.htmlnvd
- www.debian.org/security/2015/dsa-3398nvd
- www.securityfocus.com/bid/84947nvd
- www.ubuntu.com/usn/USN-2811-1nvd
- www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.htmlnvd
News mentions
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