CVE-2019-1690 : What You Need to Know
Learn about CVE-2019-1690 affecting Cisco APIC devices. Find out the impact, technical details, and mitigation steps for this security vulnerability.
A security vulnerability exists in the management interface of Cisco Application Policy Infrastructure Controller (APIC) software, potentially exploitable by an unauthorized attacker in close proximity to the affected device.
Understanding CVE-2019-1690
This CVE affects Cisco Application Policy Infrastructure Controller (APIC) devices running versions prior to 4.2(0.21c).
What is CVE-2019-1690?
The vulnerability arises from inadequate access control measures for IPv6 link-local connectivity on the management interface of the affected device.
The Impact of CVE-2019-1690
The vulnerability could allow an attacker on the same physical network to bypass default access control restrictions on the affected device.
Technical Details of CVE-2019-1690
The following are technical details of the CVE:
Vulnerability Description
- Lack of appropriate access control measures for IPv6 link-local connectivity on the management interface
Affected Systems and Versions
- Product: Cisco Application Policy Infrastructure Controller (APIC)
- Vendor: Cisco
- Versions Affected: Prior to 4.2(0.21c)
Exploitation Mechanism
- Attacker on the same physical network attempts to connect to the IPv6 link-local address of the affected device
Mitigation and Prevention
It is crucial to take immediate steps and implement long-term security practices to mitigate the vulnerability.
Immediate Steps to Take
- Apply vendor-provided patches or updates
- Implement network segmentation to limit exposure
- Monitor network traffic for any suspicious activity
Long-Term Security Practices
- Regularly update and patch software and firmware
- Conduct security assessments and penetration testing
- Educate users on security best practices
Patching and Updates
- Refer to vendor advisories for specific patching instructions