CVE-2018-19072 : Vulnerability Insights and Analysis
Discover the vulnerability in Foscam C2 and Opticam i5 devices allowing local users to manipulate archive files, potentially compromising system security. Learn mitigation steps here.
A vulnerability has been found in Foscam C2 devices and Opticam i5 devices, allowing local users to manipulate an archive file within a specific directory.
Understanding CVE-2018-19072
This CVE identifies a security issue in Foscam C2 and Opticam i5 devices related to directory permissions.
What is CVE-2018-19072?
The vulnerability in Foscam C2 and Opticam i5 devices allows local users to control the extraction of files to RAM during the boot process by manipulating an archive file in a specific directory.
The Impact of CVE-2018-19072
The vulnerability grants unauthorized local users the ability to influence the boot process by controlling file extraction to RAM, potentially leading to unauthorized access or system compromise.
Technical Details of CVE-2018-19072
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The /mnt/mtd/app directory on Foscam C2 devices with System Firmware 1.11.1.8 and Application Firmware 2.72.1.32, and Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128, has been assigned 0777 permissions, enabling local users to manipulate an archive file within that directory.
Affected Systems and Versions
- Foscam C2 devices with System Firmware 1.11.1.8 and Application Firmware 2.72.1.32
- Opticam i5 devices with System Firmware 1.5.2.11 and Application Firmware 2.21.1.128
Exploitation Mechanism
By replacing an archive file within the /mnt/mtd/app directory, local users can control what is extracted to RAM during the boot process, potentially leading to unauthorized system access.
Mitigation and Prevention
To address CVE-2018-19072, follow these mitigation steps:
Immediate Steps to Take
- Restrict access to sensitive directories and files to authorized users only.
- Regularly monitor and audit file permissions to detect unauthorized changes.
Long-Term Security Practices
- Implement the principle of least privilege to limit user access rights.
- Conduct regular security training for users to raise awareness of file manipulation risks.
Patching and Updates
- Apply firmware updates provided by the device manufacturer to address the directory permission vulnerability.