Vulnerability Details : CVE-2021-38399
Honeywell Experion PKS C200, C200E, C300, and ACE controllers are vulnerable to relative path traversal, which may allow an attacker access to unauthorized files and directories.
Vulnerability category: Directory traversal
Products affected by CVE-2021-38399
- cpe:2.3:o:honeywell:c200_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:honeywell:c200e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:honeywell:c300_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:honeywell:application_control_environment_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-38399
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38399
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
ICS-CERT | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-38399
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
-
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.Assigned by: ics-cert@hq.dhs.gov (Secondary)
References for CVE-2021-38399
-
https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04
Honeywell Experion PKS and ACE Controllers | CISAThird Party Advisory;US Government Resource
-
https://www.honeywellprocess.com/library/support/notifications/Customer/SN2021-02-22-01-Experion-C300-CCL.pdf
HomeProduct
Jump to