CVE-2017-14469
CVSS v3
9.8
CRITICAL
EPSS Score
37.0 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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 Associated Fault Code: 0028 Fault Type: Non-User Description: Values 0x01 and 0x02 are invalid values for the user fault routine. By writing directly to the file it is possible to set these values. When this is done and the device is moved into a run state, a fault is triggered. NOTE: This is not possible through RSLogix.
Technical details
- Published
- 2018-04-05
Frequently asked questions
What is CVE-2017-14469?
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 Associated Fault Code: 0028 Fault Type: Non-User Description: Values 0x01 and 0x02 are invalid values for the user fault routine. By writing directly to the file it is possible to set these values. When this is done and the device is moved into a run state, a fault is triggered. NOTE: This is not possible through RSLogix.
Is CVE-2017-14469 actively exploited?
Active exploitation of CVE-2017-14469 has not been confirmed. The EPSS score is 37.0%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2017-14469?
CVE-2017-14469 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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