F5 Networks BIG-IP : Inadequate validation for TCP segments (SOL4743)

Medium Nessus Plugin ID 78204


The remote device is missing a vendor-supplied security patch.


Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with a large timer value, which causes the host to discard later packets because they appear to be too old.


Upgrade to one of the non-vulnerable versions listed in the F5 Solution SOL4743.

See Also


Plugin Details

Severity: Medium

ID: 78204

File Name: f5_bigip_SOL4743.nasl

Version: 1.7

Type: local

Published: 2014/10/10

Updated: 2019/10/25

Dependencies: 76940

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: cpe:/a:f5:big-ip_local_traffic_manager, cpe:/h:f5:big-ip

Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Patch Publication Date: 2007/05/16

Reference Information

CVE: CVE-2005-0356