CVE-2019-5304 Denial of service in AR120-S;AR1200;AR1200-S;AR150;AR150-S;AR160;AR200;AR200-S;AR2200;AR2200-S;AR3200;AR3600;IPS Module;NGFW Module;NIP6300;NIP6600;NetEngine16EX;S5700;S6700;SRG1300;SRG2300;SRG3300;Secospace AntiDDoS8000;Secospace USG6300;Secospace USG6500;Secospace USG6600

High 7.5 Published 3 Jan 2020 Updated 4 Aug 2024

Remote attackers can cause Huawei network devices to reset by sending malicious MPLS Echo Request messages due to insufficient input validation.

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-2019-5304?

CVE-2019-5304 is a high-severity denial of service vulnerability in Huawei Ar3200 Firmware, published on 3 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Some Huawei products have a buffer error vulnerability. An unauthenticated, remote attacker could send specific MPLS Echo Request messages to the target products. Due to insufficient input validation of some parameters in the messages, successful exploit may cause the device to reset.

Weakness: CWE-120

Which versions are affected by CVE-2019-5304?

It affects 26 products.

Products include Huawei Ar120-S Firmware, Huawei Ar1200-S Firmware, Huawei Ar1200 Firmware, Huawei Ar150-S Firmware, Huawei Ar150 Firmware, Huawei Ar160 Firmware and 20 more.

How do I fix CVE-2019-5304?

No fix has been published for CVE-2019-5304 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-5304 being exploited?

There is no known exploitation of CVE-2019-5304 in the wild and no public exploit code.

All Huawei Ar3200 Firmware vulnerabilities

Sources

Also known as GHSA-g2v6-85vj-6rw8.