PT-2001-2524 · Nokia · Vpn-1/Firewall-1+1

Published 2001-10-08 · Updated 2017-07-11 · CVE-2001-1431

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nokia Firewall Appliances versions 3.3 through 3.4.1 with specific VPN-1/FireWall-1 service packs

Description The issue concerns the improper rewriting of the third packet of a TCP three-way handshake when SYN Defender is configured in Active Gateway mode. This allows remote attackers to gain sensitive information.

Recommendations For Nokia Firewall Appliances version 3.3 with VPN-1/FireWall-1 4.1 Service Pack 3, update to a version with the corrected SYN Defender configuration. For Nokia Firewall Appliances version 3.4 with VPN-1/FireWall-1 4.1 Service Pack 4, update to a version with the corrected SYN Defender configuration. For Nokia Firewall Appliances version 3.4 or 3.4.1 with VPN-1/FireWall-1 4.1 Service Pack 5, update to a version with the corrected SYN Defender configuration. As a temporary workaround, consider disabling SYN Defender in Active Gateway mode until a patch is available.

Fix

Related Identifiers

CVE-2001-1431

Affected Products

Nokia Firewall Appliances

Vpn-1/Firewall-1

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2001-1431 · Security Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2001-1431 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/8293 · Note
• http://kb.cert.org/vuls/id/258731 · Note