PT-2003-2436 · Kerio · Kerio Personal Firewall

Published 2003-12-31 · Updated 2017-07-29 · CVE-2003-1491

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Kerio Personal Firewall (KPF) version 2.1.4

Description The issue allows remote attackers to bypass the firewall filters. This is due to a default rule that accepts incoming packets from DNS, specifically those using UDP port 53. Attackers can exploit this by sending packets with a source port of 53.

Recommendations For Kerio Personal Firewall (KPF) version 2.1.4, consider modifying the default rule to restrict incoming packets from DNS or limit the acceptance of packets with a source port of 53 to only trusted sources.

Fix

Code Injection

Weakness Enumeration

CWE-16

CWE-94

Related Identifiers

CVE-2003-1491

Affected Products

Kerio Personal Firewall

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2003-1491 · Security Note
• http://securiteam.com/securitynews/5FP0N1P9PI.html · Note
• http://securityfocus.com/bid/7436 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/11880 · Note
• http://archives.neohapsis.com/archives/fulldisclosure/2003-q2/0352.html · Note