CVE-2017-2850 : What You Need to Know
Learn about CVE-2017-2850 affecting Foscam C1 Indoor HD cameras. Discover the impact, technical details, and mitigation steps for this high-severity vulnerability.
A potential security issue has been identified in Foscam C1 Indoor HD cameras with application firmware 2.52.2.37, allowing attackers to inject arbitrary characters into the pureftpd.passwd file through a specially crafted HTTP request.
Understanding CVE-2017-2850
This CVE involves a vulnerability in Foscam C1 Indoor IP Cameras that can be exploited through the web management interface, potentially leading to the bypassing of chroot restrictions within the FTP server.
What is CVE-2017-2850?
- The vulnerability allows users to change their username via a crafted HTTP request, leading to arbitrary character injection in the pureftpd.passwd file.
- Attackers can exploit this to bypass chroot restrictions within the FTP server by manipulating the file.
The Impact of CVE-2017-2850
- CVSS Score: 8.8 (High)
- Attack Vector: Network
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Privileges Required: Low
- Scope: Unchanged
- User Interaction: None
Technical Details of CVE-2017-2850
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
- The flaw allows for arbitrary character injection in the pureftpd.passwd file during a username change.
Affected Systems and Versions
- Affected Product: Indoor IP Camera C1 Series
- Vendor: Foscam
- Affected Version: Application firmware 2.52.2.37
Exploitation Mechanism
- Attackers can exploit the vulnerability by sending a specially crafted HTTP request to the affected device.
Mitigation and Prevention
Protecting systems from CVE-2017-2850 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Disable remote access to the web management interface if not required.
- Regularly monitor and review FTP server logs for any suspicious activities.
- Apply vendor-supplied patches or updates promptly.
Long-Term Security Practices
- Implement network segmentation to isolate critical devices.
- Conduct regular security assessments and penetration testing.
- Educate users on safe browsing habits and phishing awareness.
Patching and Updates
- Stay informed about security advisories from Foscam and apply patches as soon as they are released.