VDB-17746 · CVE-2001-1194 · XFDB 7704

ZyXEL Prestige 681/1600 IP Packet 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.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in ZyXEL Prestige 681/1600. This vulnerability affects unknown code of the component IP Packet Handler. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2001-1194. Additionally, an exploit exists. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability was found in ZyXEL Prestige 681/1600 (Router Operating System). It has been declared as problematic. This vulnerability affects an unknown functionality of the component IP Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Zyxel Prestige 681 and 1600 SDSL Routers allow remote attackers to cause a denial of service via malformed packets with (1) an IP length less than actual packet size, or (2) fragmented packets whose size exceeds 64 kilobytes after reassembly.

The weakness was released 12/14/2001 by Przemyslaw Frasunek (Website). The advisory is available at archives.neohapsis.com. This vulnerability was named CVE-2001-1194. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Proper firewalling of is able to address this issue.

The vulnerability is also documented in the databases at X-Force (7704), Exploit-DB (21186) and SecurityFocus (BID 3695†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Router Operating System

Vendor

ZyXEL

Name

Prestige

Version

License

commercial

Website

Vendor: https://www.zyxel.com/

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

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/14/2001 🔍
12/14/2001 +0 days 🔍
12/14/2001 +0 days 🔍
07/11/2014 +4592 days 🔍
09/08/2024 +3711 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: archives.neohapsis.com
Researcher: Przemyslaw Frasunek
Status: Not defined

CVE: CVE-2001-1194 (🔍)
GCVE (CVE): GCVE-0-2001-1194
GCVE (VulDB): GCVE-100-17746
X-Force: 7704 - ZyXel Prestige DSL router packet length denial of service
SecurityFocus: 3695 - Zyxel Prestige SDSL Router IP Packet Length Remote Denial Of Service Vulnerability

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

Entryinfo

Created: 07/11/2014 11:41
Updated: 09/08/2024 01:16
Changes: 07/11/2014 11:41 (49), 04/10/2019 13:00 (6), 09/08/2024 01:16 (25)
Complete: 🔍
Cache ID: 216::103

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