PT-2020-21478 · Ftpsrv · Ftp-Srv
Published
2020-09-04
·
Updated
2020-09-04
None
No severity ratings or metrics are available. When they are, we'll update the corresponding info on the page.
Name of the Vulnerable Software and Affected Versions
ftp-srv versions 1.0.0 through 4.3.3
Description
The issue allows remote clients to access other resources in the network, for example, when connecting to the server through telnet. This enables attackers to access any network resources available to the server, including private resources in the hosting environment.
Recommendations
Upgrade to version ^2.19.6 or later
Upgrade to version ^3.1.2 or later
Upgrade to version ^4.3.4 or later
As a temporary workaround, consider blacklisting the FTP Command
PORT to prevent the server from exposing this behavior through active connections until a fix is applied. This can be achieved by configuring the ftp-srv instance with a blacklist, for example:
const ftp = new FtpSrv({
blacklist: ['PORT']
});SSRF
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Ftp-Srv