SB2017102408 - Security restrictions bypass in F5 BIG-IP
Published: October 24, 2017
Security Bulletin ID
SB2017102408
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2017-6145)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to gain unauthorized access to the iControl REST API.
The weakness exists in the iControl REST API of multiple F5 BIG-IP systems due to improper validation of cookies when the iControl REST API converts BIGIPAuthCookie authorization cookies to X-F5-Auth-Token tokens.A remote attcker can obtain an expired BIG-IP authentication cookie could exploit this vulnerability to access valid iControl REST tokens, which could be used to access the iControl REST API on a targeted system.
Remediation
Install update from vendor's website.