CVE-2017-4961 Explained : Impact and Mitigation
Discover the impact of CVE-2017-4961 on Cloud Foundry Foundation BOSH Release. Learn about the vulnerability allowing unauthorized access and privilege escalation, affected versions, and mitigation steps.
Cloud Foundry Foundation BOSH Release versions prior to 261.3 and all 260.x versions have been identified with a vulnerability allowing unauthorized access and privilege escalation.
Understanding CVE-2017-4961
An issue in Cloud Foundry Foundation BOSH Release versions prior to 261.3 and all 260.x versions enables authenticated Director users to exploit a flaw in the checksum validation process, leading to unauthorized access and privilege escalation on the Director VM.
What is CVE-2017-4961?
The vulnerability, known as "BOSH Director Shell Injection Vulnerabilities," allows a Director user to manipulate checksums to gain unauthorized access and escalate privileges on the Director VM.
The Impact of CVE-2017-4961
The vulnerability poses a significant security risk as it enables unauthorized access and privilege escalation on the Director VM, potentially leading to further compromise of the system.
Technical Details of CVE-2017-4961
The technical aspects of the vulnerability in Cloud Foundry Foundation BOSH Release.
Vulnerability Description
- Vulnerability Name: BOSH Director Shell Injection Vulnerabilities
- Description: Flaw in checksum validation process allows authenticated Director users to escalate privileges on the Director VM.
Affected Systems and Versions
- Product: Cloud Foundry Foundation BOSH Release
- Versions Affected: Prior to 261.3 and all 260.x versions
Exploitation Mechanism
- An authenticated Director user can exploit the flaw in the checksum validation process to manipulate checksums and gain unauthorized access.
Mitigation and Prevention
Steps to mitigate and prevent the exploitation of CVE-2017-4961.
Immediate Steps to Take
- Upgrade to version 261.3 or above to eliminate the vulnerability.
- Monitor and restrict Director user permissions to minimize the risk of unauthorized access.
Long-Term Security Practices
- Regularly update and patch Cloud Foundry Foundation BOSH Release to address security vulnerabilities promptly.
Patching and Updates
- Apply security patches and updates provided by the vendor to ensure the system is protected against known vulnerabilities.