Vulnerability Assessment & Network Security Forums



If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Firewalls >> Remote host replies to SYN+FIN


Vulnerability Assessment Details

Remote host replies to SYN+FIN

Vulnerability Assessment Summary
Sends a SYN+FIN packet and expects a SYN+ACK

Detailed Explanation for this Vulnerability Assessment

Summary :

It may be possible to bypass firewall rules

Description :

The remote host does not discard TCP SYN packets which have
the FIN flag set.

Depending on the kind of firewall you are using, a possible hacker
may use this flaw to bypass its rules.

See also :

http://archives.neohapsis.com/archives/bugtraq/2002-10/0266.html
http://www.kb.cert.org/vuls/id/464113

Solution :

Contact your vendor for a patch

Network Security Threat Level:

None / CVSS Base Score : 0
(AV:R/AC:L/Au:NR/C:N/A:N/I:N/B:N)

Networks Security ID: 7487

Vulnerability Assessment Copyright: This script is Copyright (C) 2003 Tenable Network Security

Cables, Connectors

Cisco SF200-24 Switch 24 Port 10/100 + 2x Gigabit ports + 2x SFP ports_
$1.86
Cisco  SF200-24 Switch 24 Port 10/100 + 2x Gigabit ports + 2x SFP ports_ pictureCisco DMP-4310 Digital Media Player
$49.0
Cisco DMP-4310 Digital Media Player pictureCisco AIR-SAP1602I-A-K9 Access Point Ctr Aironet 1600 802.11 a/g/n/ac SAP
$149.0
Cisco AIR-SAP1602I-A-K9 Access Point Ctr Aironet 1600 802.11 a/g/n/ac SAP pictureNEW OPEN BOX Cisco AIR-CAP3502I-A-K9 Aironet 3500 Series Access Point
$95.0
NEW OPEN BOX Cisco AIR-CAP3502I-A-K9 Aironet 3500 Series Access Point picture


Discussions

No Discussions have been posted on this vulnerability.