Vulnerability Details : CVE-2017-16740
A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.
Vulnerability category: OverflowExecute code
Products affected by CVE-2017-16740
- cpe:2.3:o:rockwellautomation:1766-l32bxba_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1766-l32awa_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1766-l32bxb_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1766-l32bwaa_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1766-l32awaa_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:rockwellautomation:1766-l32bwa_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-16740
3.69%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-16740
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
10.0
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
3.9
|
6.0
|
NIST |
CWE ids for CVE-2017-16740
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The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
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The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: ics-cert@hq.dhs.gov (Secondary)
References for CVE-2017-16740
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https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1070883
Rockwell Automation - Sign In
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https://ics-cert.us-cert.gov/advisories/ICSA-18-009-01
Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers | CISAThird Party Advisory;US Government Resource
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http://www.securityfocus.com/bid/102474
Rockwell Automation MicroLogix 1400 Controllers CVE-2017-16740 Stack Buffer Overflow VulnerabilityMitigation;Third Party Advisory;VDB Entry
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