CVE-2020-27865 : What You Need to Know
Learn about CVE-2020-27865, a high-severity vulnerability in D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Find out the impact, affected systems, and mitigation steps.
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the uhttpd service, which listens on TCP port 80 by default. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the device.
Understanding CVE-2020-27865
This CVE-2020-27865 vulnerability affects D-Link DAP-1860 WiFi extenders.
What is CVE-2020-27865?
CVE-2020-27865 is a vulnerability that allows network-adjacent attackers to run arbitrary code on affected D-Link DAP-1860 firmware version 1.04B03 devices without requiring authentication.
The Impact of CVE-2020-27865
- CVSS Score: 8.8 (High)
- Attack Vector: Adjacent Network
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Privileges Required: None
Technical Details of CVE-2020-27865
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from incorrect string matching logic in the uhttpd service, enabling attackers to execute code on the device.
Affected Systems and Versions
- Affected Product: D-Link DAP-1860
- Affected Version: Firmware version 1.04B03
Exploitation Mechanism
Attackers can exploit this vulnerability by accessing protected pages due to the flaw in string matching logic, allowing them to escalate privileges and execute arbitrary code.
Mitigation and Prevention
Protecting systems from CVE-2020-27865 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the firmware to the latest version provided by D-Link.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Implement network segmentation to limit the impact of potential attacks.
- Regularly review and update security configurations.
Patching and Updates
- Stay informed about security advisories from D-Link.
- Apply patches promptly to address known vulnerabilities.