SB2015061005 - Information disclosure in strongSwan
Published: June 10, 2015 Updated: July 28, 2020
Security Bulletin ID
SB2015061005
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2015-4171)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
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.
Remediation
Install update from vendor's website.
References
- 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