SB2017112001 - Brute-force attack in Cisco Identity Services Engine
Published: November 20, 2017
Security Bulletin ID
SB2017112001
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Brute-force attack (CVE-ID: CVE-2017-12316)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to bypass authentication on the target system.
The weakness exists due to insufficient server-side login attempt limit enforcement. A remote attacker can send sending modified login attempts to the Guest Portal login page, perform multiple login attempts in excess of the configured login attempt limit and conduct brute-force password attacks on the ISE Guest Portal.
Remediation
Install update from vendor's website.