F5 BIG-IP Cookie Remote Information Disclosure

medium Nessus Plugin ID 20089


The remote load balancer suffers from an information disclosure vulnerability.


The remote host appears to be an F5 BIG-IP load balancer. The load balancer encodes the IP address of the actual web server that it is acting on behalf of within a cookie. Additionally, information after 'BIGipServer' is configured by the user and may be the logical name of the device. These values may disclose sensitive information, such as internal IP addresses and names.


Contact the vendor for a fix.

See Also


Plugin Details

Severity: Medium

ID: 20089

File Name: bigip_cookie.nasl

Version: 1.22

Type: remote

Family: Web Servers

Published: 10/26/2005

Updated: 6/12/2020

Risk Information


Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: cpe:/h:f5:big-ip