CVE-2020-28214 : Exploit Details and Defense Strategies
Learn about CVE-2020-28214, a CWE-760 vulnerability in Modicon M221 allowing pre-computation of hash values, compromising security. Find mitigation steps and long-term security practices here.
A CWE-760 vulnerability exists in Modicon M221, allowing attackers to pre-compute hash values using dictionary attacks.
Understanding CVE-2020-28214
What is CVE-2020-28214?
The CVE-2020-28214 vulnerability involves the use of a one-way hash with a predictable salt in Modicon M221, potentially enabling attackers to disable protection mechanisms.
The Impact of CVE-2020-28214
This vulnerability could allow attackers to pre-compute hash values using techniques like rainbow tables, compromising the security provided by an unpredictable salt.
Technical Details of CVE-2020-28214
Vulnerability Description
The vulnerability in Modicon M221 involves the use of a one-way hash with a predictable salt, making it susceptible to dictionary attacks.
Affected Systems and Versions
- Product: Modicon M221 (all references, all versions)
Exploitation Mechanism
Attackers can exploit this vulnerability by pre-computing hash values using dictionary attack techniques like rainbow tables.
Mitigation and Prevention
Immediate Steps to Take
- Implement strong, unique passwords to mitigate the risk of dictionary attacks.
- Regularly monitor and update security measures to prevent unauthorized access.
Long-Term Security Practices
- Use multi-factor authentication to enhance security.
- Conduct regular security audits and assessments to identify and address vulnerabilities.
Patching and Updates
- Stay informed about security advisories and patches provided by the vendor to address this vulnerability.