CVE-2019-11189 Auth bypass in n/a

High 7.5 Published Updated

Attackers can bypass network access control in ONOS by injecting gratuitous ARP replies, removing flow denial rules and allowing unauthorized network access.

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-2019-11189?

CVE-2019-11189 is a high-severity authentication bypass vulnerability in n/a, published on 20 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Authentication Bypass by Spoofing in org.onosproject.acl (access control) and org.onosproject.mobility (host mobility) in ONOS v2.0 and earlier allows attackers to bypass network access control via data plane packet injection. To exploit the vulnerability, an attacker sends a gratuitous ARP reply that causes the host mobility application to remove existing access control flow denial rules in the network. The access control application does not re-install flow deny rules, so the attacker can bypass the intended access control policy.

Weakness: CWE-290

Which versions are affected by CVE-2019-11189?

It affects 1 product.

Products include Opennetworking Onos.

How do I fix CVE-2019-11189?

No fix has been published for CVE-2019-11189 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2019-11189 being exploited?

There is no known exploitation of CVE-2019-11189 in the wild and no public exploit code.

Sources

Also known as GHSA-wggh-x2ch-8rhx.

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