VDB-258 · BID 8525 · Snort 521

ZoneLabs ZoneAlarm 3.7/4.0 UDP Connection denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in ZoneLabs ZoneAlarm 3.7/4.0. It has been declared as critical. Impacted is an unknown function of the component UDP Connection Handler. The manipulation results in denial of service. The attack may be performed from remote. In addition, an exploit is available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability was found in ZoneLabs ZoneAlarm 3.7/4.0 (Firewall Software). It has been classified as critical. Affected is some unknown processing of the component UDP Connection Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was presented 09/02/2003 as not defined posting (Bugtraq). The advisory is available at securityfocus.com. It is possible to launch the attack remotely. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

A public exploit has been developed in Perl. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at zonelabs.com.It is possible to mitigate the weakness by firewalling . The best possible mitigation is suggested to be applying a restrictive firewalling. Attack attempts may be identified with Snort ID 521.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 8525†). Further details are available at xforce.iss.net. See VDB-468 and VDB-751 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Firewall Software

Vendor

ZoneLabs

Name

ZoneAlarm

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.3
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Patch: zonelabs.com

Snort ID: 521

Timelineinfo

09/02/2003 🔍
09/02/2003 +0 days 🔍
09/03/2003 +1 days 🔍
06/26/2019 +5775 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined

GCVE (VulDB): GCVE-100-258
SecurityFocus: 8525 - ZoneAlarm Random UDP Flood Denial Of Service Vulnerability

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

Entryinfo

Created: 09/03/2003 11:36
Updated: 06/26/2019 12:28
Changes: 09/03/2003 11:36 (57), 06/26/2019 12:28 (1)
Complete: 🔍
Cache ID: 216:647:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.