CVE-2019-15273 : Security Advisory and Response
Learn about CVE-2019-15273 involving weaknesses in Cisco TelePresence Collaboration Endpoint Software CLI, allowing local attackers to overwrite files, potentially leading to denial of service.
Cisco TelePresence Collaboration Endpoint Software Arbitrary File Overwrite Vulnerabilities
Understanding CVE-2019-15273
This CVE involves weaknesses in the CLI of Cisco TelePresence Collaboration Endpoint (CE) Software that could allow a local attacker to overwrite files, potentially leading to a denial of service condition.
What is CVE-2019-15273?
The vulnerability arises due to inadequate permission enforcement in the software, enabling an authenticated attacker to overwrite arbitrary files by sending harmful input to specific commands.
The Impact of CVE-2019-15273
- Confidentiality Impact: None
- Integrity Impact: High
- Availability Impact: High
- Base Score: 6.0 (Medium Severity)
- Successful exploitation could lead to a denial of service condition by crashing the device.
Technical Details of CVE-2019-15273
The technical aspects of this CVE include:
Vulnerability Description
Multiple vulnerabilities in the CLI of Cisco TelePresence Collaboration Endpoint (CE) Software allow an authenticated attacker to overwrite arbitrary files due to insufficient permission enforcement.
Affected Systems and Versions
- Product: Cisco TelePresence TC Software
- Vendor: Cisco
- Affected Version: Unspecified
Exploitation Mechanism
- Attacker authenticates as the remote support user
- Submits harmful input to specific commands
- Can overwrite arbitrary files on the underlying filesystem
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2019-15273.
Immediate Steps to Take
- Apply vendor patches and updates promptly
- Monitor system logs for any suspicious activities
- Restrict access to vulnerable systems
Long-Term Security Practices
- Regular security training for employees
- Implement the principle of least privilege
- Conduct regular security audits and assessments
Patching and Updates
- Regularly check for security advisories from Cisco
- Apply recommended patches and updates to the affected software