CVE-2017-12089 Denial of service in Allen Bradley

What is CVE-2017-12089?

CVE-2017-12089 is a high-severity denial of service vulnerability in Talos Allen Bradley, published on 5 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An exploitable denial of service vulnerability exists in the program download functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a device fault resulting in halted operations. An attacker can send an unauthenticated packet to trigger this vulnerability.

Which versions are affected by CVE-2017-12089?

It affects 1 product.

Products include Rockwellautomation Micrologix 1400 B Firmware.

How do I fix CVE-2017-12089?

No fix has been published for CVE-2017-12089 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-2017-12089 being exploited?

There is no known exploitation of CVE-2017-12089 in the wild and no public exploit code.

Other vulnerabilities in Talos Allen Bradley

• CVE-2017-14462 Missing authorization in Allen Bradley Critical 10.0
• CVE-2017-14463 Missing authorization in Allen Bradley Critical 10.0
• CVE-2017-14464 Missing authorization in Allen Bradley Critical 10.0
• CVE-2017-14465 Missing authorization in Allen Bradley Critical 10.0
• CVE-2017-14466 Missing authorization in Allen Bradley Critical 10.0

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xgpx-2cqp-p435.