CVE-2020-3143 : Security Advisory and Response
Learn about CVE-2020-3143, a high-severity vulnerability in Cisco TelePresence TC Software allowing directory traversal attacks. Find mitigation steps and long-term security practices.
A vulnerability in the video endpoint API (xAPI) of Cisco TelePresence Collaboration Endpoint (CE) Software, Cisco TelePresence Codec (TC) Software, and Cisco RoomOS Software could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device.
Understanding CVE-2020-3143
This CVE involves a security flaw in Cisco TelePresence TC Software that could be exploited by an authenticated remote attacker to perform directory traversal attacks.
What is CVE-2020-3143?
The vulnerability arises due to insufficient validation of user-supplied input to the xAPI of the affected software, enabling an attacker to read and write arbitrary files in the system by sending a crafted request to the xAPI.
The Impact of CVE-2020-3143
- CVSS Base Score: 8.8 (High Severity)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2020-3143
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows an attacker to conduct directory traversal attacks on the affected device by exploiting the xAPI of Cisco TelePresence TC Software.
Affected Systems and Versions
- Affected Product: Cisco TelePresence TC Software
- Vendor: Cisco
- Affected Version: n/a
Exploitation Mechanism
The attacker needs either an In-Room Control or administrator account to exploit this vulnerability.
Mitigation and Prevention
Protecting systems from CVE-2020-3143 is crucial to prevent potential exploitation.
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly.
- Monitor network traffic for any signs of malicious activity.
- Restrict access to vulnerable systems.
Long-Term Security Practices
- Regularly update and patch software to address security vulnerabilities.
- Implement strong authentication mechanisms to prevent unauthorized access.
Patching and Updates
- Check for security advisories from Cisco and apply recommended patches.
- Keep systems up to date with the latest software versions and security updates.