CVE-2019-3785 : What You Need to Know
Discover the impact of CVE-2019-3785, a vulnerability in Cloud Foundry's Cloud Controller allowing unauthorized access. Learn about affected systems, exploitation, and mitigation steps.
The Cloud Controller of Cloud Foundry, versions earlier than 1.78.0, has a flawed authorization implementation in one of their endpoints, allowing a remote authenticated attacker to gain unauthorized access.
Understanding CVE-2019-3785
What is CVE-2019-3785?
This CVE refers to a vulnerability in Cloud Foundry's Cloud Controller that enables a remote authenticated attacker with read permissions to obtain a signed URL for the bit-service, granting them unauthorized write permissions.
The Impact of CVE-2019-3785
The vulnerability poses a medium severity risk with a CVSS base score of 6.5. It can lead to high availability impact and integrity impact, allowing attackers to manipulate data.
Technical Details of CVE-2019-3785
Vulnerability Description
The flaw in the Cloud Controller's authorization implementation allows attackers to retrieve package details and gain write permissions to the bit-service.
Affected Systems and Versions
- Product: CAPI
- Vendor: Cloud Foundry
- Versions Affected: All versions prior to 1.78.0
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- User Interaction: None
- Scope: Unchanged
- Vector String: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Cloud Foundry to version 1.78.0 or later to mitigate the vulnerability.
- Monitor and restrict access to sensitive endpoints.
Long-Term Security Practices
- Regularly review and update access control policies.
- Conduct security training for developers and administrators.
Patching and Updates
- Apply security patches and updates promptly to address known vulnerabilities.