CVE-2020-1759 : Exploit Details and Defense Strategies
Learn about CVE-2020-1759, a vulnerability in Red Hat Ceph Storage 4 and Openshift Container Storage 4.2 that allows attackers to manipulate data and compromise confidentiality and integrity. Discover mitigation steps and long-term security practices.
A nonce reuse vulnerability in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 could enable attackers to forge auth tags and manipulate data, potentially leading to serious confidentiality and integrity threats.
Understanding CVE-2020-1759
A vulnerability was found in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 where a nonce reuse vulnerability was discovered in the secure mode of the messenger v2 protocol.
What is CVE-2020-1759?
This CVE relates to a nonce reuse vulnerability in the messenger v2 protocol of Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2, allowing attackers to potentially manipulate data and compromise confidentiality and integrity.
The Impact of CVE-2020-1759
- CVSS Base Score: 6.4 (Medium)
- Attack Complexity: High
- Attack Vector: Adjacent Network
- Confidentiality Impact: High
- Integrity Impact: High
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Vector String: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Technical Details of CVE-2020-1759
Vulnerability Description
The vulnerability allows attackers to exploit a nonce reuse issue in the messenger v2 protocol, potentially enabling data manipulation and compromising security.
Affected Systems and Versions
The following systems and versions are impacted:
- Product: Ceph
- Vendor: The Ceph Project
- Versions: Red Hat Ceph Storage 4, Red Hat Openshift Container Storage 4.2
Exploitation Mechanism
Attackers can exploit the nonce reuse vulnerability to forge auth tags and manipulate data, leveraging the reuse of a nonce in a session.
Mitigation and Prevention
Immediate Steps to Take
- Apply available patches and updates promptly.
- Monitor vendor advisories and apply recommended security measures.
- Disable any unnecessary services to reduce the attack surface.
Long-Term Security Practices
- Conduct regular security assessments and audits.
- Implement network segmentation to contain potential threats.
- Educate users and administrators about security best practices.
Patching and Updates
Regularly update and patch affected systems to mitigate the CVE-2020-1759 vulnerability.