CVE-2020-28045 : What You Need to Know
Discover how CVE-2020-28045 exposes ProlinOS to unauthorized binary execution. Learn about the impact, affected systems, exploitation, and mitigation steps.
An unsigned-library issue in ProlinOS through version 2.4.161.8859R allows attackers to execute custom binaries by exploiting a vulnerability in the signature verification process.
Understanding CVE-2020-28045
This CVE identifies a security flaw in ProlinOS that enables the execution of unauthorized binaries due to inadequate signature validation.
What is CVE-2020-28045?
- ProlinOS requires signed applications and system binaries for execution, but shared libraries are exempt from this requirement.
- Attackers can load custom binaries by compiling them as shared objects and using LD_PRELOAD.
The Impact of CVE-2020-28045
The vulnerability poses a significant security risk as it allows malicious actors to run unauthorized code on affected systems, potentially leading to data breaches or system compromise.
Technical Details of CVE-2020-28045
This section delves into the specifics of the vulnerability.
Vulnerability Description
- An unsigned-library issue in ProlinOS through version 2.4.161.8859R.
- Requirement for signed applications and system binaries, excluding shared libraries.
- Exploitation via loading custom binaries as shared objects using LD_PRELOAD.
Affected Systems and Versions
- ProlinOS through version 2.4.161.8859R.
Exploitation Mechanism
- Attackers can compile custom binaries as shared objects and load them using LD_PRELOAD to execute unauthorized code.
Mitigation and Prevention
Protecting systems from CVE-2020-28045 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Implement strict access controls and monitoring mechanisms.
- Regularly update and patch the OS and applications.
- Monitor for any unusual binary executions.
Long-Term Security Practices
- Enforce code signing for all binaries, including shared libraries.
- Conduct regular security audits and penetration testing.
Patching and Updates
- Apply patches provided by the OS vendor promptly.
- Keep all software and libraries up to date to prevent exploitation of known vulnerabilities.