CVE-2019-1733 : Security Advisory and Response
Learn about CVE-2019-1733, a vulnerability in Cisco NX-OS Software allowing cross-site scripting attacks. Find out the impact, affected systems, and mitigation steps.
A vulnerability in the NX-API Sandbox interface in Cisco NX-OS Software could allow an attacker to conduct a cross-site scripting attack. This flaw could be exploited by convincing a user to click on a malicious link.
Understanding CVE-2019-1733
This CVE involves a security vulnerability in Cisco NX-OS Software that could lead to a cross-site scripting (XSS) attack through the NX-API Sandbox interface.
What is CVE-2019-1733?
The vulnerability stems from inadequate validation of user input by the NX-API Sandbox interface, enabling an attacker to execute arbitrary script code on the affected device.
The Impact of CVE-2019-1733
The vulnerability has a CVSS base score of 5.4, indicating a medium severity issue. If successfully exploited, an attacker could execute malicious scripts within the NX-API Sandbox interface.
Technical Details of CVE-2019-1733
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The flaw in the NX-API Sandbox interface allows an authorized attacker to perform a cross-site scripting attack by manipulating user input validation inadequacies.
Affected Systems and Versions
- Product: Cisco NX-OS Software
- Versions Affected: Less than 8.3(1) (specific version unspecified)
Exploitation Mechanism
To exploit this vulnerability, the attacker must trick a user of the NX-API Sandbox interface into clicking on a specially crafted link, enabling the execution of arbitrary script code.
Mitigation and Prevention
Protecting systems from CVE-2019-1733 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly to mitigate the vulnerability.
- Educate users to be cautious of clicking on unverified links or suspicious emails.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Implement security awareness training for users to recognize and report suspicious activities.
Patching and Updates
Regularly check for security advisories and updates from Cisco to ensure systems are protected from known vulnerabilities.