Vulnerability Report

CVE-2015-4171

Title: Strongswan Strongswan Information Disclosure

Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2015-4171.

CWE Category CWE-200
Published Date Jun 10, 2015
Modified Date May 06, 2026
Exploit Status Not Found
Score 2.6 CVSS v2.0
Exploit Probability (EPSS)
1.01%

Vulnerability Summary

CVE-2015-4171: strongSwan 4.3.0 through 5.x before 5.3.2 and strongSwan VPN Client before 1.4.6, when using EAP or pre-shared keys for authenticating an IKEv2 connection, does not enforce server authentication restrictions until the entire authentication process is complete, which allows remote servers to obtain credentials by using a valid certificate and then reading the responses.

Impacted Vendors

D
debian 1
S
strongswan 2

Reference Links

http://lists.opensuse.org/opensuse-updates/2015-06/msg00040.html http://www.debian.org/security/2015/dsa-3282 http://www.openwall.com/lists/oss-security/2015/05/29/6 http://www.openwall.com/lists/oss-security/2015/05/29/7 http://www.openwall.com/lists/oss-security/2015/06/08/4 http://www.securityfocus.com/bid/74933 http://www.securitytracker.com/id/1032514 http://www.ubuntu.com/usn/USN-2628-1 https://bugzilla.suse.com/show_bug.cgi?id=933591 https://play.google.com/store/apps/details?id=org.strongswan.android https://www.strongswan.org/blog/2015/06/08/strongswan-vulnerability-%2528cve-2015-4171%2529.html https://www.suse.com/security/cve/CVE-2015-4171.html http://lists.opensuse.org/opensuse-updates/2015-06/msg00040.html http://www.debian.org/security/2015/dsa-3282 http://www.openwall.com/lists/oss-security/2015/05/29/6 http://www.openwall.com/lists/oss-security/2015/05/29/7 http://www.openwall.com/lists/oss-security/2015/06/08/4 http://www.securityfocus.com/bid/74933 http://www.securitytracker.com/id/1032514 http://www.ubuntu.com/usn/USN-2628-1 https://bugzilla.suse.com/show_bug.cgi?id=933591 https://play.google.com/store/apps/details?id=org.strongswan.android https://www.strongswan.org/blog/2015/06/08/strongswan-vulnerability-%2528cve-2015-4171%2529.html https://www.suse.com/security/cve/CVE-2015-4171.html
CVSS v2.0
Source Entity [email protected]
Severity LOW
2.6
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:H/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2015-4171 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:H/Au:N/C:P/I:N/A:N

Affected Stack

No specific products linked.