CVE-2020-26084 : Exploit Details and Defense Strategies
Learn about CVE-2020-26084, a vulnerability in Cisco Edge Fog Fabric allowing unauthorized file access. Find mitigation steps and long-term security practices here.
A vulnerability in the REST API of Cisco Edge Fog Fabric could allow an authenticated, remote attacker to access files outside of their authorization sphere on an affected device.
Understanding CVE-2020-26084
This CVE involves a security vulnerability in Cisco Edge Fog Fabric that could be exploited by an attacker to access unauthorized files on the system.
What is CVE-2020-26084?
The vulnerability in the REST API of Cisco Edge Fog Fabric allows an authenticated attacker to access files beyond their authorized scope on the affected device. The flaw arises from incorrect authorization enforcement on the system, enabling an attacker to overwrite arbitrary files by sending a crafted request to the API.
The Impact of CVE-2020-26084
The vulnerability has a CVSS base score of 6.5, indicating a medium severity issue. If successfully exploited, an attacker could compromise the integrity of the affected device by overwriting files.
Technical Details of CVE-2020-26084
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in the REST API of Cisco Edge Fog Fabric allows an authenticated attacker to access files outside their authorization scope due to incorrect enforcement.
Affected Systems and Versions
- Product: Cisco Edge Fog Fabric
- Vendor: Cisco
- Version: Not applicable (n/a)
Exploitation Mechanism
The vulnerability can be exploited by an authenticated attacker sending a specially crafted request to the API, enabling them to access and overwrite files on the affected device.
Mitigation and Prevention
Protecting systems from CVE-2020-26084 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly to mitigate the vulnerability.
- Monitor network traffic for any suspicious activities that could indicate exploitation attempts.
Long-Term Security Practices
- Implement the principle of least privilege to restrict access rights for users and applications.
- Regularly review and update access control policies to prevent unauthorized access to sensitive files.
Patching and Updates
- Stay informed about security advisories from Cisco and apply patches as soon as they are released to address known vulnerabilities.