Rapid7 Vulnerability & Exploit Database

MFSA2007-11 Firefox: FTP PASV port-scanning

Back to Search

MFSA2007-11 Firefox: FTP PASV port-scanning

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/20/2007
Created
07/25/2018
Added
11/21/2013
Modified
11/21/2013

Description

The FTP protocol includes the PASV (passive) command which is used by Firefox to request an alternate data port. The specification of the FTP protocol allows the server response to include an alternate server address as well, although this is rarely used in practice. reported that a malicious web page hosted on a specially-coded FTP server could use this feature to perform a rudimentary port-scan of machines inside the firewall of the victim. By itself this causes no harm, but information about an internal network may be useful to an attacker should there be other vulnerabilities present on the network.Mozilla clients will now ignore the alternate server address.

Solution(s)

  • mozilla-firefox-upgrade-1_5_0_11
  • mozilla-firefox-upgrade-2_0_0_3

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;