CVE-2017-14462 Missing authorization in Allen Bradley
Unauthenticated attackers can read or modify sensitive data and ladder logic on Allen Bradley Micrologix PLCs when specific keyswitch states are active.
- 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-2017-14462?
CVE-2017-14462 is a critical missing authorization 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 access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE or PROG (also RUN for some) Description: Allows an attacker to enable SNMP, Modbus, DNP, and any other features in the channel configuration. Also allows attackers to change network parameters, such as IP address, name server, and domain name.
Which versions are affected by CVE-2017-14462?
It affects 1 product.
Products include Rockwellautomation Micrologix 1400 B Firmware.
How do I fix CVE-2017-14462?
No fix has been published for CVE-2017-14462 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2017-14462 being exploited?
There is no known exploitation of CVE-2017-14462 in the wild and no public exploit code.
Other vulnerabilities in Talos Allen Bradley
Sources
Also known as GHSA-rprw-m5v5-w8g8.