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CVE-2000-1027

MediumPublished

Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests,...

Published: Jan 22, 2001
Updated: Aug 8, 2024
Assigning CNA: mitre
Evidence observed: Oct 3, 2000

Primary CVSS

5.0/ 10Medium

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS probability estimate

3.5%

Low · next 30 days

Percentile: 89.0%
Model date: Oct 12, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.

Sources

Cisco PIX Firewall 5.2 - PASV Mode FTP Internal Address DisclosureExploit
Fabio Pietrosanti · hardware · Oct 3, 2000

Responsible use

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