CVE-2018-0275 : What You Need to Know
Learn about CVE-2018-0275 affecting Cisco Identity Services Engine (ISE). Discover how local attackers can exploit the support tunnel weakness to gain shell access and execute commands with root privileges.
Cisco Identity Services Engine (ISE) vulnerability allows local attackers to gain shell access and execute commands with root privileges.
Understanding CVE-2018-0275
A weakness in the support tunnel function of Cisco ISE enables unauthorized access to the device's shell, potentially leading to system compromise.
What is CVE-2018-0275?
The vulnerability in Cisco ISE allows a local attacker with authentication to exploit an incorrectly configured support tunnel feature, gaining access to the device's shell and executing commands with root privileges.
The Impact of CVE-2018-0275
If successfully exploited, attackers can compromise the system, execute arbitrary commands with elevated privileges, and potentially disrupt or manipulate the device's operations.
Technical Details of CVE-2018-0275
The following technical aspects provide insight into the vulnerability and its implications:
Vulnerability Description
- Improper configuration of the support tunnel feature in Cisco ISE
- Attackers can trick the device into unlocking the support user account
- Access to tunnel password and device serial number
- Ability to run any system command with root privileges
Affected Systems and Versions
- Vulnerable versions: Cisco ISE software versions prior to 2.2.0.470
Exploitation Mechanism
- Local attacker with authentication deceives the device into unlocking the support user account
- Gains access to tunnel password and device serial number
- Executes system commands with root privileges
Mitigation and Prevention
Effective strategies to mitigate the CVE-2018-0275 vulnerability:
Immediate Steps to Take
- Update Cisco ISE software to version 2.2.0.470 or later
- Implement proper configuration of the support tunnel feature
- Monitor and restrict access to the support user account
Long-Term Security Practices
- Regular security assessments and audits of Cisco ISE configurations
- Employee training on secure configuration practices and recognizing social engineering attempts
Patching and Updates
- Stay informed about security advisories and updates from Cisco
- Apply patches promptly to address known vulnerabilities