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.
2015-06-10T18:59:09.097
2025-04-12T10:46:40.837
Deferred
CVSSv2: 2.6 (LOW)
AV:N/AC:H/Au:N/C:P/I:N/A:N
4.9
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | strongswan | strongswan_vpn_client | ≤ 1.4.5 | Yes |
| Operating System | canonical | ubuntu_linux | 14.04 | Yes |
| Operating System | canonical | ubuntu_linux | 14.10 | Yes |
| Operating System | canonical | ubuntu_linux | 15.04 | Yes |
| Operating System | debian | debian_linux | 8.0 | Yes |
| Application | strongswan | strongswan | 4.3.0 | Yes |
| Application | strongswan | strongswan | 4.3.1 | Yes |
| Application | strongswan | strongswan | 4.3.2 | Yes |
| Application | strongswan | strongswan | 4.3.3 | Yes |
| Application | strongswan | strongswan | 4.3.4 | Yes |
| Application | strongswan | strongswan | 4.3.5 | Yes |
| Application | strongswan | strongswan | 4.3.6 | Yes |
| Application | strongswan | strongswan | 4.3.7 | Yes |
| Application | strongswan | strongswan | 4.4.0 | Yes |
| Application | strongswan | strongswan | 4.4.1 | Yes |
| Application | strongswan | strongswan | 4.5.0 | Yes |
| Application | strongswan | strongswan | 4.5.1 | Yes |
| Application | strongswan | strongswan | 4.5.2 | Yes |
| Application | strongswan | strongswan | 4.5.3 | Yes |
| Application | strongswan | strongswan | 4.6.0 | Yes |
| Application | strongswan | strongswan | 4.6.1 | Yes |
| Application | strongswan | strongswan | 4.6.2 | Yes |
| Application | strongswan | strongswan | 4.6.3 | Yes |
| Application | strongswan | strongswan | 4.6.4 | Yes |
| Application | strongswan | strongswan | 5.0.0 | Yes |
| Application | strongswan | strongswan | 5.0.1 | Yes |
| Application | strongswan | strongswan | 5.0.2 | Yes |
| Application | strongswan | strongswan | 5.0.3 | Yes |
| Application | strongswan | strongswan | 5.0.4 | Yes |
| Application | strongswan | strongswan | 5.1.0 | Yes |
| Application | strongswan | strongswan | 5.1.1 | Yes |
| Application | strongswan | strongswan | 5.1.2 | Yes |
| Application | strongswan | strongswan | 5.1.3 | Yes |
| Application | strongswan | strongswan | 5.2.0 | Yes |
| Application | strongswan | strongswan | 5.2.1 | Yes |
| Application | strongswan | strongswan | 5.2.2 | Yes |
| Application | strongswan | strongswan | 5.2.3 | Yes |
| Application | strongswan | strongswan | 5.3.0 | Yes |
| Application | strongswan | strongswan | 5.3.1 | Yes |