PT-2002-1000 · Zyxel · Zywall 10+1

Published 2002-03-11 · Updated 2018-08-13 · CVE-2002-0438

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions ZyXEL ZyWALL USG 300 (affected versions not specified) ZyXEL ZyWALL 10 versions prior to 3.50

Description The issue allows a remote attacker to cause a denial of service by sending a specially crafted ARP packet, which can disable the LAN interface of the firewall. This is achieved by sending an ARP packet with the firewall's IP address and an incorrect MAC address.

Recommendations For ZyXEL ZyWALL 10 versions prior to 3.50, update to version 3.50 or later to resolve the issue. For ZyXEL ZyWALL USG 300, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Insufficient Verification of Data Authenticity

Weakness Enumeration

CWE-345

Related Identifiers

BDU:2014-00046

CVE-2002-0438

Affected Products

Zywall 10

Zywall Usg 300

References · 7

• 🔥 http://securityfocus.com/bid/4272 · Exploit
• http://securityfocus.com/archive/1/261411 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2002-0438 · Security Note
• https://bdu.fstec.ru/vul/2014-00046 · Security Note
• http://iss.net/security_center/static/8436.php · Vendor Advisory
• ftp://ftp.zyxel.com/public/zywall10/firmware/zywall10_V3.50%28WA.2%29C0_Standard.zip · Note
• http://archives.neohapsis.com/archives/vulnwatch/2002-q1/0067.html · Note