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F5 Networks: K42378447 (CVE-2018-5389): IPsec IKEv1 vulnerability CVE-2018-5389

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F5 Networks: K42378447 (CVE-2018-5389): IPsec IKEv1 vulnerability CVE-2018-5389

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
09/06/2018
Created
03/19/2019
Added
10/23/2018
Modified
03/03/2020

Description

The Internet Key Exchange v1 main mode is vulnerable to offline dictionary or brute force attacks. Reusing a key pair across different versions and modes of IKE could lead to cross-protocol authentication bypasses. It is well known, that the aggressive mode of IKEv1 PSK is vulnerable to offline dictionary or brute force attacks. For the main mode, however, only an online attack against PSK authentication was thought to be feasible. This vulnerability could allow an attacker to recover a weak Pre-Shared Key or enable the impersonation of a victim host or network.

Solution(s)

  • f5-big-ip-upgrade-latest

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