Vulnerability Details : CVE-2021-33555
In PEPPERL+FUCHS WirelessHART-Gateway <= 3.0.7 the filename parameter is vulnerable to unauthenticated path traversal attacks, enabling read access to arbitrary files on the server.
Vulnerability category: Directory traversal
Products affected by CVE-2021-33555
- cpe:2.3:o:pepperl-fuchs:wha-gw-f2d2-0-as-z2-eth_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:pepperl-fuchs:wha-gw-f2d2-0-as-_z2-eth.eip_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33555
0.62%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33555
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
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
|
CERT VDE | |
|
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-2021-33555
-
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: info@cert.vde.com (Primary)
References for CVE-2021-33555
-
https://cert.vde.com/en-us/advisories/vde-2021-027
PEPPERL+FUCHS: WirelessHART-Gateway - Vulnerability may allow remote attackers to cause a Denial Of Service — English (USA)Third Party Advisory
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