CVE-2019-14379 : Exploit Details and Defense Strategies
Learn about CVE-2019-14379, a vulnerability in SubTypeValidator.java of FasterXML jackson-databind prior to 2.9.9.2, allowing for remote code execution. Find out the impact, affected systems, and mitigation steps.
A vulnerability in SubTypeValidator.java module of FasterXML jackson-databind version prior to 2.9.9.2 allows for remote code execution when default typing is used alongside ehcache. Learn about the impact, affected systems, and mitigation steps.
Understanding CVE-2019-14379
This CVE involves a vulnerability in FasterXML jackson-databind that can lead to remote code execution.
What is CVE-2019-14379?
CVE-2019-14379 is a security vulnerability in the SubTypeValidator.java module of FasterXML jackson-databind prior to version 2.9.9.2. It arises when default typing is combined with ehcache, specifically due to net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup.
The Impact of CVE-2019-14379
The vulnerability in FasterXML jackson-databind could potentially allow attackers to execute remote code, posing a significant security risk to affected systems.
Technical Details of CVE-2019-14379
This section provides detailed technical information about the CVE.
Vulnerability Description
The vulnerability occurs in SubTypeValidator.java of FasterXML jackson-databind before version 2.9.9.2, where default typing in conjunction with ehcache can lead to remote code execution.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Versions affected: Prior to 2.9.9.2
Exploitation Mechanism
The presence of net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup exacerbates the vulnerability, potentially enabling remote code execution.
Mitigation and Prevention
Protect your systems from CVE-2019-14379 with these mitigation strategies.
Immediate Steps to Take
- Update FasterXML jackson-databind to version 2.9.9.2 or later.
- Disable default typing if not required.
- Implement network segmentation to limit exposure.
Long-Term Security Practices
- Regularly monitor for security advisories and updates.
- Conduct security assessments and penetration testing.
- Educate users and developers on secure coding practices.
Patching and Updates
- Apply patches and updates promptly to address known vulnerabilities and enhance system security.