CVE-2020-3355 : What You Need to Know
Learn about CVE-2020-3355, a vulnerability in Cisco Data Center Network Manager that allows attackers to execute arbitrary script code. Find mitigation steps and long-term security practices here.
A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) could allow an authenticated, remote attacker with administrative credentials to conduct a cross-site scripting (XSS) attack.
Understanding CVE-2020-3355
This CVE involves a stored cross-site scripting vulnerability in Cisco Data Center Network Manager.
What is CVE-2020-3355?
The vulnerability in Cisco DCNM allows an attacker to execute arbitrary script code in the context of the affected interface or access sensitive information.
The Impact of CVE-2020-3355
- Attack Complexity: Low
- Attack Vector: Network
- Base Score: 4.8 (Medium)
- Privileges Required: High
- User Interaction: Required
- Scope: Changed
- Confidentiality and Integrity Impact: Low
- Availability Impact: None
Technical Details of CVE-2020-3355
This section provides detailed technical information about the vulnerability.
Vulnerability Description
- Insufficient input validation in the web-based management interface of Cisco DCNM
- Allows an attacker to insert malicious data and execute arbitrary script code
Affected Systems and Versions
- Product: Cisco Data Center Network Manager
- Vendor: Cisco
- Affected Version: n/a
Exploitation Mechanism
- Attacker needs administrative credentials on the affected device
Mitigation and Prevention
Steps to address and prevent exploitation of CVE-2020-3355.
Immediate Steps to Take
- Apply vendor patches or updates
- Monitor network traffic for signs of exploitation
- Restrict access to the management interface
Long-Term Security Practices
- Regular security training for administrators
- Implement strong password policies
- Conduct regular security audits
Patching and Updates
- Stay informed about security advisories from Cisco
- Apply patches promptly to mitigate risks