CVE-2000-1027

Cisco Secure PIX Firewall 5.2(2) - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2000-1027. PoCs published by Fabio Pietrosanti.

AI-analyzed exploit summary This exploit targets a vulnerability in Cisco PIX firewall firmware versions 5.2(4) and 5.2(2) by repeatedly sending PASV commands during an FTP session to disclose internal IP addresses. The script automates the process of sending PASV commands in a loop to trigger the information leak.

Description

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.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Fabio Pietrosanti · bashremotehardware
https://www.exploit-db.com/exploits/20369

This exploit targets a vulnerability in Cisco PIX firewall firmware versions 5.2(4) and 5.2(2) by repeatedly sending PASV commands during an FTP session to disclose internal IP addresses. The script automates the process of sending PASV commands in a loop to trigger the information leak.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Cisco PIX Firewall (5.2(4), 5.2(2))
Auth required
Prerequisites: FTP access to the target Cisco PIX firewall · Valid FTP credentials
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/1877
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=97059440000367&w=2
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/1623
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/5646

Scores

EPSS 0.0353
EPSS Percentile 87.8%

Details

Status published
Products (1)
cisco/pix_firewall_software 5.2
Published Dec 11, 2000
Tracked Since Feb 18, 2026