CVE-2015-4171: Infoleak
First published: Wed Jun 10 2015(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| strongSwan VPN Client for Android | <=1.4.5 | |
| Ubuntu | =14.04 | |
| Ubuntu | =14.10 | |
| Ubuntu | =15.04 | |
| Debian Linux | =8.0 | |
| strongSwan | =4.3.0 | |
| strongSwan | =4.3.1 | |
| strongSwan | =4.3.2 | |
| strongSwan | =4.3.3 | |
| strongSwan | =4.3.4 | |
| strongSwan | =4.3.5 | |
| strongSwan | =4.3.6 | |
| strongSwan | =4.3.7 | |
| strongSwan | =4.4.0 | |
| strongSwan | =4.4.1 | |
| strongSwan | =4.5.0 | |
| strongSwan | =4.5.1 | |
| strongSwan | =4.5.2 | |
| strongSwan | =4.5.3 | |
| strongSwan | =4.6.0 | |
| strongSwan | =4.6.1 | |
| strongSwan | =4.6.2 | |
| strongSwan | =4.6.3 | |
| strongSwan | =4.6.4 | |
| strongSwan | =5.0.0 | |
| strongSwan | =5.0.1 | |
| strongSwan | =5.0.2 | |
| strongSwan | =5.0.3 | |
| strongSwan | =5.0.4 | |
| strongSwan | =5.1.0 | |
| strongSwan | =5.1.1 | |
| strongSwan | =5.1.2 | |
| strongSwan | =5.1.3 | |
| strongSwan | =5.2.0 | |
| strongSwan | =5.2.1 | |
| strongSwan | =5.2.2 | |
| strongSwan | =5.2.3 | |
| strongSwan | =5.3.0 | |
| strongSwan | =5.3.1 |
Remedy
https://www.strongswan.org/blog/2015/06/08/strongswan-vulnerability-%2528cve-2015-4171%2529.html
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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
Frequently Asked Questions
What is the severity of CVE-2015-4171?
CVE-2015-4171 has a medium severity rating due to its potential to allow remote servers to bypass authentication restrictions.
How do I fix CVE-2015-4171?
To fix CVE-2015-4171, update to strongSwan versions 5.3.2 or later and strongSwan VPN Client 1.4.6 or later.
Which versions are affected by CVE-2015-4171?
CVE-2015-4171 affects strongSwan versions 4.3.0 to 5.x before 5.3.2 and strongSwan VPN Client versions before 1.4.6.
What is the primary impact of CVE-2015-4171?
The primary impact of CVE-2015-4171 is the inability to enforce server authentication restrictions during the IKEv2 authentication process.
Is CVE-2015-4171 exploitable in all configurations?
CVE-2015-4171 is specifically exploitable when using EAP or pre-shared keys for IKEv2 connection authentication.
- agent/references
- agent/type
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/last-modified-date
- agent/severity
- agent/author
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/strongswan
- canonical/strongswan vpn client for android
- version/strongswan vpn client for android/1.4.5
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/14.04
- version/ubuntu/14.10
- version/ubuntu/15.04
- vendor/debian
- canonical/debian linux
- version/debian linux/8.0
- canonical/strongswan
- version/strongswan/4.3.0
- version/strongswan/4.3.1
- version/strongswan/4.3.2
- version/strongswan/4.3.3
- version/strongswan/4.3.4
- version/strongswan/4.3.5
- version/strongswan/4.3.6
- version/strongswan/4.3.7
- version/strongswan/4.4.0
- version/strongswan/4.4.1
- version/strongswan/4.5.0
- version/strongswan/4.5.1
- version/strongswan/4.5.2
- version/strongswan/4.5.3
- version/strongswan/4.6.0
- version/strongswan/4.6.1
- version/strongswan/4.6.2
- version/strongswan/4.6.3
- version/strongswan/4.6.4
- version/strongswan/5.0.0
- version/strongswan/5.0.1
- version/strongswan/5.0.2
- version/strongswan/5.0.3
- version/strongswan/5.0.4
- version/strongswan/5.1.0
- version/strongswan/5.1.1
- version/strongswan/5.1.2
- version/strongswan/5.1.3
- version/strongswan/5.2.0
- version/strongswan/5.2.1
- version/strongswan/5.2.2
- version/strongswan/5.2.3
- version/strongswan/5.3.0
- version/strongswan/5.3.1