CVE-2018-0449 : Exploit Details and Defense Strategies
Learn about CVE-2018-0449, a vulnerability in Cisco Jabber for Mac that allows local attackers to modify files on affected devices. Find out the impact, affected systems, and mitigation steps.
Cisco Jabber Client Framework Insecure Directory Permissions Vulnerability
Understanding CVE-2018-0449
This CVE involves a weakness in the Cisco Jabber Client Framework (JCF) software, part of Cisco Jabber for Mac. It allows a local attacker with elevated privileges to modify files on the affected device.
What is CVE-2018-0449?
The vulnerability stems from insecure directory permissions on a JCF-created directory. An attacker can create hard links to any system location by accessing the affected directory.
The Impact of CVE-2018-0449
- CVSS Base Score: 5.1 (Medium Severity)
- Attack Vector: Local
- Privileges Required: High
- Availability Impact: High
- Integrity Impact: Low
Technical Details of CVE-2018-0449
Vulnerability Description
The vulnerability allows an authenticated attacker to manipulate files on the device by exploiting insecure directory permissions in the JCF-created directory.
Affected Systems and Versions
- Affected Product: Cisco Jabber for Mac
- Affected Version: n/a
Exploitation Mechanism
The attacker, with elevated privileges, can create hard links to any location on the system by accessing the vulnerable directory.
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-provided patches promptly.
- Restrict access to vulnerable directories.
- Monitor file changes and permissions closely.
Long-Term Security Practices
- Regularly update software and security patches.
- Implement the principle of least privilege to limit access.
- Conduct security training to raise awareness of social engineering tactics.
Patching and Updates
Ensure all systems running Cisco Jabber for Mac are updated with the latest patches to mitigate the vulnerability.