CVE-2020-3364 Security feature bypass in Cisco IOS XR Software

Medium 5.3 Published Updated

An unauthenticated remote attacker can bypass access control lists on the standby route processor management interface of Cisco IOS XR devices.

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-2020-3364?

CVE-2020-3364 is a medium-severity vulnerability in Cisco Ios Xr, published on 18 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the access control list (ACL) functionality of the standby route processor management interface of Cisco IOS XR Software could allow an unauthenticated, remote attacker to reach the configured IP addresses on the standby route processor management Gigabit Ethernet Management interface. The vulnerability is due to a logic error that was introduced in the Cisco IOS XR Software, which prevents the ACL from working when applied against the standby route processor management interface. An attacker could exploit this vulnerability by attempting to access the device through the standby route processor management interface.

Weakness: CWE-863, CWE-284

Which versions are affected by CVE-2020-3364?

It affects 1 product.

Products include Cisco Ios Xr.

How do I fix CVE-2020-3364?

No fix has been published for CVE-2020-3364 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-3364 being exploited?

There is no known exploitation of CVE-2020-3364 in the wild and no public exploit code.

All Cisco Ios Xr vulnerabilities

Sources

Also known as GHSA-h32p-cwph-5qx4.

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