CVE-2017-12089 : Exploit Details and Defense Strategies
Learn about CVE-2017-12089, a high-severity denial of service vulnerability in Allen Bradley Micrologix 1400 Series B FRN 21.2 and earlier versions. Find out the impact, affected systems, exploitation details, and mitigation steps.
A vulnerability in the program download feature of Allen Bradley Micrologix 1400 Series B FRN 21.2 and earlier versions can lead to a denial of service attack. Attackers can exploit this issue by sending a specially crafted packet, causing a device fault that halts operations.
Understanding CVE-2017-12089
This CVE involves a denial of service vulnerability in Allen Bradley Micrologix 1400 Series B FRN 21.2 and earlier versions.
What is CVE-2017-12089?
The vulnerability allows attackers to disrupt operations by triggering a device fault through a malicious packet, resulting in a denial of service.
The Impact of CVE-2017-12089
The vulnerability has a CVSS base score of 8.6 (High) with a high impact on availability. It requires no user interaction and can be exploited over a network.
Technical Details of CVE-2017-12089
This section provides detailed technical information about the vulnerability.
Vulnerability Description
An exploitable denial of service vulnerability exists in the program download functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and earlier. An attacker can send an unauthenticated packet to trigger the vulnerability.
Affected Systems and Versions
- Product: Allen Bradley
- Vendor: Talos
- Affected Versions: Allen Bradley Micrologix 1400 Series B FRN 21.2, 21.0, 15
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- Scope: Changed
- Availability Impact: High
Mitigation and Prevention
Steps to address and prevent the CVE-2017-12089 vulnerability.
Immediate Steps to Take
- Apply vendor patches or updates promptly.
- Implement network segmentation to limit exposure.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security training for employees to recognize social engineering attacks.
- Implement strong access controls and authentication mechanisms.
Patching and Updates
- Stay informed about security advisories from Allen Bradley and Talos.
- Apply security patches as soon as they are released to mitigate the vulnerability.