CVE-2019-1912 : Vulnerability Insights and Analysis
Learn about CVE-2019-1912, an authentication bypass vulnerability in Cisco Small Business 220 Series Smart Switches allowing remote file uploads. Find mitigation steps and impacts here.
A security flaw in the web management interface of Cisco Small Business 220 Series Smart Switches allows unauthorized remote attackers to upload files, potentially compromising the device's configuration.
Understanding CVE-2019-1912
This CVE involves an authentication bypass vulnerability in Cisco Small Business 220 Series Smart Switches.
What is CVE-2019-1912?
The vulnerability enables attackers to upload files by exploiting insufficient authorization checks in the web management interface.
The Impact of CVE-2019-1912
- CVSS Base Score: 9.1 (Critical)
- Attack Vector: Network
- Attack Complexity: Low
- Integrity Impact: High
- Availability Impact: High
- The flaw could lead to unauthorized configuration changes or introduction of a reverse shell.
Technical Details of CVE-2019-1912
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
- The flaw allows unauthorized file uploads due to inadequate authorization checks.
Affected Systems and Versions
- Affected Product: Cisco Small Business 220 Series Smart Plus Switches
- Vendor: Cisco
- Vulnerable Versions: Older than 1.1.4.4
Exploitation Mechanism
- Attackers need to send crafted requests to specific sections of the web interface.
Mitigation and Prevention
Protect your systems from CVE-2019-1912 with these strategies:
Immediate Steps to Take
- Disable the web management interface if not required.
- Implement network segmentation to limit access.
- Monitor network traffic for suspicious activities.
Long-Term Security Practices
- Regularly update firmware and security patches.
- Conduct security audits and penetration testing.
Patching and Updates
- Apply the latest firmware updates from Cisco to address the vulnerability.