CVE-2019-13047 : Vulnerability Insights and Analysis
Learn about CVE-2019-13047, a vulnerability in ToaruOS versions up to 1.10.9 allowing unauthorized access to kernel pages. Find mitigation steps and prevention measures.
A vulnerability exists in the kernel/sys/syscall.c module in ToaruOS versions up to 1.10.9. The issue arises from incorrect access control in the sys_sysfunc case 9 for TOARU_SYS_FUNC_SETHEAP. This flaw enables the mapping of arbitrary kernel pages into user space, potentially resulting in unauthorized root access.
Understanding CVE-2019-13047
This CVE identifies a security vulnerability in ToaruOS versions up to 1.10.9 that allows unauthorized access to kernel pages.
What is CVE-2019-13047?
The vulnerability in the kernel/sys/syscall.c module of ToaruOS versions up to 1.10.9 allows for incorrect access control in the sys_sysfunc case 9, potentially leading to unauthorized root access.
The Impact of CVE-2019-13047
The vulnerability enables the mapping of arbitrary kernel pages into user space, posing a significant risk of unauthorized access and potential exploitation by attackers.
Technical Details of CVE-2019-13047
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The flaw in the sys_sysfunc case 9 for TOARU_SYS_FUNC_SETHEAP in ToaruOS versions up to 1.10.9 allows for incorrect access control, facilitating the mapping of arbitrary kernel pages into user space.
Affected Systems and Versions
- Vulnerable Systems: ToaruOS versions up to 1.10.9
- Affected Component: kernel/sys/syscall.c module
Exploitation Mechanism
The vulnerability can be exploited by manipulating the sys_sysfunc case 9 for TOARU_SYS_FUNC_SETHEAP, enabling the unauthorized mapping of kernel pages into user space.
Mitigation and Prevention
Protecting systems from CVE-2019-13047 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches or updates provided by ToaruOS promptly.
- Monitor for any unauthorized access or suspicious activities on the system.
Long-Term Security Practices
- Implement the principle of least privilege to restrict access rights for users and processes.
- Conduct regular security assessments and audits to identify and address vulnerabilities proactively.
Patching and Updates
Regularly check for security updates and patches released by ToaruOS to address the vulnerability and enhance system security.