CVE-2020-28948 : Security Advisory and Response
Learn about CVE-2020-28948, a vulnerability in Archive_Tar allowing unserialization attacks. Find out the impact, affected systems, exploitation method, and mitigation steps.
Archive_Tar through 1.4.10 allows an unserialization attack due to a specific blocking issue.
Understanding CVE-2020-28948
This CVE involves a vulnerability in Archive_Tar that enables an unserialization attack.
What is CVE-2020-28948?
Archive_Tar up to version 1.4.10 is susceptible to an unserialization attack because it fails to block the PHAR: protocol.
The Impact of CVE-2020-28948
The vulnerability allows attackers to execute arbitrary code through unserialization, potentially leading to remote code execution.
Technical Details of CVE-2020-28948
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The issue arises from the incomplete blocking of the PHAR: protocol, leaving the system open to unserialization attacks.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Versions: up to 1.4.10
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious PHAR payloads to execute arbitrary code.
Mitigation and Prevention
Protecting systems from CVE-2020-28948 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Archive_Tar to the latest version to patch the vulnerability.
- Implement proper input validation to prevent malicious payloads.
Long-Term Security Practices
- Regularly update software and libraries to mitigate known vulnerabilities.
- Conduct security audits and code reviews to identify and address potential weaknesses.
Patching and Updates
- Apply security patches promptly to address vulnerabilities like the one in Archive_Tar.