Overview
CVE-2025-63674 describes a security vulnerability found in Blurams Lumi Security Camera (A31C) version 23.1227.472.2926. This vulnerability allows a local physical attacker to execute arbitrary code on the device. The attack is achieved by overriding the bootloader via a specially crafted SD card. This means an attacker needs physical access to the camera to exploit it.
Technical Details
The vulnerability stems from the lack of proper validation of the bootloader image when the device boots from an SD card. An attacker can insert a malicious SD card containing a modified bootloader. The camera, upon startup, will then execute the malicious bootloader, allowing the attacker to gain control of the device and execute arbitrary code. The ability to override the bootloader bypasses standard security measures and provides a direct path to system compromise.
CVSS Analysis
The Common Vulnerability Scoring System (CVSS) score for CVE-2025-63674 is 6.1, classifying it as a MEDIUM severity vulnerability. The CVSS vector likely reflects the need for physical access, which limits the attack scope. While remote exploitation isn’t possible, the impact on a compromised device can be significant.
Possible Impact
Successful exploitation of this vulnerability could lead to several negative consequences:
- Full Device Compromise: The attacker gains complete control over the camera’s operating system.
- Malware Installation: The attacker can install persistent malware on the device.
- Data Exfiltration: The attacker can access and exfiltrate sensitive data, including video and audio recordings.
- Privacy Violation: Compromised cameras can be used for unauthorized surveillance.
- Botnet Recruitment: The compromised camera could be added to a botnet for malicious purposes.
Mitigation or Patch Steps
Unfortunately, direct user mitigation is limited without a firmware update from Blurams. The following steps are recommended:
- Contact Blurams Support: Reach out to Blurams support (blurams.com) and inquire about a patch or firmware update to address CVE-2025-63674.
- Physical Security: Implement physical security measures to prevent unauthorized access to the camera. This includes mounting the camera in secure locations and restricting access to the SD card slot.
- Monitor for Unusual Activity: Be vigilant for unusual network traffic or device behavior that might indicate a compromise.
- Consider Alternative Devices: If security is paramount and a patch is unavailable, consider replacing the camera with a more secure alternative.
