Kerio Personal Firewall 2.1.4 code injection

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Kerio Personal Firewall 2.1.4. Affected by this vulnerability is an unknown functionality. Such manipulation leads to code injection. This vulnerability is traded as CVE-2003-1491. The attack may be launched remotely. Furthermore, there is an exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Kerio Personal Firewall 2.1.4 (Firewall Software). It has been rated as problematic. Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Kerio Personal Firewall (KPF) 2.1.4 has a default rule to accept incoming packets from DNS (UDP port 53), which allows remote attackers to bypass the firewall filters via packets with a source port of 53.

The weakness was shared 04/25/2003 by David F. Madrid (Website). The advisory is shared for download at securiteam.com. This vulnerability is handled as CVE-2003-1491 since 10/24/2007. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

The exploit is available at insecure.org. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 11580 (Firewall UDP Packet Source Port 53 Ruleset Bypass), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Firewalls, running in the context r and relying on port 1026.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at kerio.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (11880), Tenable (11580), SecurityFocus (BID 7436†) and OSVDB (60212†). The entries VDB-451 and VDB-22761 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.6
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 11580
Nessus Name: Firewall UDP Packet Source Port 53 Ruleset Bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: kerio.com

Timelineinfo

04/25/2003 🔍
04/25/2003 +0 days 🔍
04/25/2003 +0 days 🔍
05/06/2003 +11 days 🔍
12/31/2003 +239 days 🔍
10/24/2007 +1393 days 🔍
11/18/2009 +756 days 🔍
03/08/2021 +4127 days 🔍

Sourcesinfo

Vendor: kerio.com

Advisory: securiteam.com⛔
Researcher: David F. Madrid
Status: Not defined

CVE: CVE-2003-1491 (🔍)
GCVE (CVE): GCVE-0-2003-1491
GCVE (VulDB): GCVE-100-44
X-Force: 11880 - Kerio Personal Firewall (KPF) UDP packet could allow an attacker to bypass the firewall, Medium Risk
SecurityFocus: 7436 - Kerio Personal Firewall Firewall Filter Bypass Vulnerability
OSVDB: 60212 - Kerio Personal Firewall Default DNS Rule Restriction Bypass

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/25/2003 02:00
Updated: 03/08/2021 08:57
Changes: 04/25/2003 02:00 (77), 01/11/2019 11:57 (2), 03/08/2021 08:57 (2)
Complete: 🔍
Cache ID: 216:7B7:103

Once again VulDB remains the best source for vulnerability data.

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