Vulnerability Details : CVE-2018-14821
Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote, unauthenticated threat actor to intentionally send a malformed CIP packet to Port 44818, causing the RSLinx Classic application to terminate. The user will need to manually restart the software to regain functionality.
Vulnerability category: Overflow
Products affected by CVE-2018-14821
- cpe:2.3:a:rockwellautomation:rslinx:*:*:*:*:classic:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-14821
1.03%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-14821
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-14821
-
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)
-
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: ics-cert@hq.dhs.gov (Secondary)
References for CVE-2018-14821
-
https://ics-cert.us-cert.gov/advisories/ICSA-18-263-02
Rockwell Automation RSLinx Classic | CISAThird Party Advisory;US Government Resource
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https://www.tenable.com/security/research/tra-2018-26
[R1] RSLinx Classic Buffer Overflows - Research Advisory | Tenable®Exploit;Third Party Advisory
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