Improper input validation in Rockwell Automation products - CVE-2017-9312

Vulnerability identifier: #VU13420

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2017-9312

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Rockwell Automation

Affected software:
Allen-Bradley Armor Compact GuardLogix 5370
Allen-Bradley Compact GuardLogix 5370
Allen-Bradley Armor CompactLogix 5370 L3
Allen-Bradley CompactLogix 5370 L3
Allen-Bradley CompactLogix 5370 L2
Allen-Bradley CompactLogix 5370 L1

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to an error when processing malicious input. A remote attacker can send a specific TCP packet to the product and cause a Major Non-Recoverable Fault (MNRF) and service crash.

Update to version 31.011.

• https://ics-cert.us-cert.gov/advisories/ICSA-18-172-02