CVE-2002-2397

Sygate personal firewall 5.0 could allow remote attackers to bypass firewall filters via spoofed (1) source IP address of 127.0.0.1 or (2) network address of…

published November 1, 2007

CVSS
—
EPSS
2%
Percentile
82.2
In the wild
Unconfirmed
What it is

⚠️ A crafty little loophole in Sygate Personal Firewall 5.0 lets sneaky attackers sidestep your protection using a familiar face—127.0.0.1! Think of this like a restaurant where diners can enter through the back door using a staff ID that looks just like a regular customer's. If the staff doesn’t double-check the IDs, any regular Joe can waltz in and potentially order anything off the menu. This means an attacker could exploit this vulnerability to bypass your firewall filters, gaining unauthorized access and possibly wreaking havoc within your network. While no exploits have been reported, the potential for a clever attacker to sneak through is absolutely concerning!

Put simply

Think of this like a restaurant where diners can enter through the back door using a staff ID that looks just like a regular customer's. If the staff doesn’t double-check the IDs, any regular Joe can waltz in and potentially order anything off the menu. This vulnerability allows remote attackers to spoof a local IP address (127.0.0.1) or network address (127.0.0.0), effectively tricking the firewall into thinking the traffic is coming from a trusted source, thereby bypassing its defenses.

What to do

This means an attacker could exploit this vulnerability to bypass your firewall filters, gaining unauthorized access and possibly wreaking havoc within your network. While no exploits have been reported, the potential for a clever attacker to sneak through is absolutely concerning! To shore up your defenses, upgrade to the latest version of Sygate Personal Firewall, if available, and review your firewall rules to ensure that they are set to block unexpected spoofed addresses. Regularly auditing your security settings can also help keep your network safe. You've got this! With a few tweaks, you can keep those pesky intruders at bay! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02190 · 82.2th percentile
Published
2007-11-01T17:00Z
EPSS history
Timeline
  • 01 NOV 17:00Z
    Sygate personal firewall 5.0 could allow remote attackers to bypass firewall filters via spoofed (1) source IP address of 127.0.0.1 or (2) network address of…
    cvelistv5