CVE-2018-9129 Weak cryptography in n/a

Medium 5.9 Published Updated

Attackers can exploit a Bleichenbacher vulnerability in the IKE handshake to decrypt IPsec VPN traffic or bypass authentication on ZyXEL firewalls.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-9129?

CVE-2018-9129 is a medium-severity vulnerability in n/a, published on 15 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ZyXEL ZyWALL/USG series devices have a Bleichenbacher vulnerability in their Internet Key Exchange (IKE) handshake implementation used for IPsec based VPN connections.

Which versions are affected by CVE-2018-9129?

It affects 17 products.

Products include Zyxel Usg 1100 Firmware, Zyxel Usg 110 Firmware, Zyxel Usg 1900 Firmware, Zyxel Usg 20w-Vpn Firmware, Zyxel Usg 20w Firmware, Zyxel Usg 2200-Vpn Firmware and 11 more.

How do I fix CVE-2018-9129?

No fix has been published for CVE-2018-9129 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-9129 being exploited?

There is no known exploitation of CVE-2018-9129 in the wild and no public exploit code.

Sources

Also known as GHSA-rxgc-f7rc-pv6h.

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