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Vulnerability Details : CVE-2017-7924

An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.
Publish Date : 2017-09-20 Last Update Date : 2017-10-04
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 20

- Products Affected By CVE-2017-7924

# Product Type Vendor Product Version Update Edition Language
1 OS Rockwellautomation 1763-l16awa Firmware - Version Details Vulnerabilities
2 OS Rockwellautomation 1763-l16bbb Firmware - Version Details Vulnerabilities
3 OS Rockwellautomation 1763-l16bwa Firmware - Version Details Vulnerabilities
4 OS Rockwellautomation 1763-l16dwd Firmware - Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Rockwellautomation 1763-l16awa Firmware 1
Rockwellautomation 1763-l16bbb Firmware 1
Rockwellautomation 1763-l16bwa Firmware 1
Rockwellautomation 1763-l16dwd Firmware 1

- References For CVE-2017-7924

http://www.securityfocus.com/bid/99622
BID 99622
https://ics-cert.us-cert.gov/advisories/ICSA-17-138-03

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used TOGETHER WITH(AND)
Vulnerability is valid if product versions listed below are used TOGETHER WITH(AND)
Vulnerability is valid if product versions listed below are used TOGETHER WITH(AND)
Vulnerability is valid if product versions listed below are used TOGETHER WITH(AND)

- Metasploit Modules Related To CVE-2017-7924

DoS Exploitation of Allen-Bradley's Legacy Protocol (PCCC)
A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition. MicroLogix 1100 controllers are affected: 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. CVE-2017-7924 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned.
Module type : auxiliary Rank : normal


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