CVE-2015-4171

Home/CVE/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

CVE

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

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.

LOW · CVSS 2.6 EPSS 0.01012

Monitor

No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence

Sigma rules0 YARA rules0

⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

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Affected Products & Versions

strongswan vpn client<= 1.4.5
canonical ubuntu linuxall versions
debian linuxall versions
strongswanall versions

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Scoring & Timeline

2.6

LOW · CVSS v2 (legacy) · cve@mitre.org

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:H/Au:N/C:P/I:N/A:N

Published to NVD10 Jun 2015 · 06:59 PM

⚑

Vendor Advisories

suse-csafopenSUSE-SU-2024:10579-1
suse-csafSUSE-SU-2015:1791-1
usnUSN-2628-1
suse-csafSUSE-SU-2015:1196-1
suse-csafSUSE-SU-2015:1227-1

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://lists.opensuse.org/opensuse-updates/2015-06/msg00040.html

http://www.debian.org/security/2015/dsa-3282Patch

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

Show all 12 references

http://www.securitytracker.com/id/1032514

http://www.ubuntu.com/usn/USN-2628-1Patch

https://bugzilla.suse.com/show_bug.cgi?id=933591

https://play.google.com/store/apps/details?id=org.strongswan.androidPatch

https://www.strongswan.org/blog/2015/06/08/strongswan-vulnerability-%2528cve-2015-4171%2529.htmlPatchVendor Advisory

https://www.suse.com/security/cve/CVE-2015-4171.html

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