CVE-2021-33555: A vulnerability may allow remote attackers to read arbitrary files on the server of the WirelessHART-Gateway
First published: Tue Aug 31 2021(Updated: )
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.
Credit: info@cert.vde.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Pepperl-fuchs Wha-gw-f2d2-0-as-z2-eth Firmware | <=3.0.7 | |
| Pepperl-fuchs Wha-gw-f2d2-0-as-z2-eth | ||
| Pepperl-fuchs Wha-gw-f2d2-0-as- Z2-eth.eip Firmware | <=3.0.7 | |
| Pepperl-fuchs Wha-gw-f2d2-0-as- Z2-eth.eip |
Remedy
No update available.
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Reference Links
Frequently Asked Questions
What is CVE-2021-33555?
CVE-2021-33555 is a vulnerability in PEPPERL+FUCHS WirelessHART- Gateway <= 3.0.7 that allows unauthenticated path traversal attacks, enabling read access to arbitrary files on the server.
How severe is CVE-2021-33555?
CVE-2021-33555 has a severity rating of 7.5 (high).
Which software versions are affected by CVE-2021-33555?
PEPPERL+FUCHS WirelessHART-Gateway versions up to and including 3.0.7 are affected by CVE-2021-33555.
How can an attacker exploit CVE-2021-33555?
An attacker can exploit CVE-2021-33555 by using unauthenticated path traversal attacks to gain read access to arbitrary files on the server.
Is there a fix available for CVE-2021-33555?
It is recommended to update to a version of PEPPERL+FUCHS WirelessHART-Gateway that is not affected by CVE-2021-33555.
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- vendor/pepperl-fuchs
- canonical/pepperl-fuchs wha-gw-f2d2-0-as-z2-eth firmware
- version/pepperl-fuchs wha-gw-f2d2-0-as-z2-eth firmware/3.0.7
- canonical/pepperl-fuchs wha-gw-f2d2-0-as-z2-eth
- canonical/pepperl-fuchs wha-gw-f2d2-0-as- z2-eth.eip firmware
- version/pepperl-fuchs wha-gw-f2d2-0-as- z2-eth.eip firmware/3.0.7
- canonical/pepperl-fuchs wha-gw-f2d2-0-as- z2-eth.eip