CVE-2017-17202 Denial of service in AR120-S,AR1200,AR1200-S,AR150,AR150-S,AR160,AR200,AR200-S,AR2200,AR2200-S,AR3200,AR3600,AR510,NetEngine16EX,SRG1300,SRG2300,SRG3300

High 7.5 Published Updated

Remote unauthenticated attackers can cause denial of service on Huawei routers by sending malformed SIP packets due to an out-of-bounds read vulnerability.

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-2017-17202?

CVE-2017-17202 is a high-severity denial of service vulnerability in Huawei Ar3200 Firmware, published on 15 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Huawei AR120-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR1200 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR1200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR150 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR150-S V200R005C32, V200R007C00, V200R008C20, V200R008C30, AR160 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR200 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R008C20, V200R008C30, AR200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR2200 V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR2200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR3200 V200R005C32, V200R006C10, V200R006C11, V200R007C00, V200R007C01, V200R007C02, V200R008C00, V200R008C10, V200R008C20, V200R008C30, AR3600 V200R006C10, V200R007C00, V200R007C01, V200R008C20, AR510 V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, NetEngine16EX V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30, SRG1300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG2300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG3300 V200R005C32, V200R006C10, V200R007C00, V200R008C20, V200R008C30 have an out-of-bounds read vulnerability due to insufficient input validation. An unauthenticated, remote attacker could exploit this vulnerability by sending malformed Session Initiation Protocol(SIP) packets to the target device. Successful exploit could make the device read out of bounds and thus cause a service to be unavailable.

Weakness: CWE-125

Which versions are affected by CVE-2017-17202?

It affects 17 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 11 more.

How do I fix CVE-2017-17202?

No fix has been published for CVE-2017-17202 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-2017-17202 being exploited?

There is no known exploitation of CVE-2017-17202 in the wild and no public exploit code.

All Huawei Ar3200 Firmware vulnerabilities

Sources

Also known as GHSA-pxwv-vq3c-q2vm.

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