CVE-2020-4879 : Exploit Details and Defense Strategies
Learn about CVE-2020-4879 affecting IBM Cognos Controller versions 10.4.0, 10.4.1, and 10.4.2. Discover the impact, technical details, and mitigation steps for this security bypass vulnerability.
IBM Cognos Controller versions 10.4.0, 10.4.1, and 10.4.2 are susceptible to a security bypass vulnerability due to improper validation of authentication cookies.
Understanding CVE-2020-4879
IBM Cognos Controller versions 10.4.0, 10.4.1, and 10.4.2 are affected by a vulnerability that could allow a remote attacker to bypass security restrictions.
What is CVE-2020-4879?
- CVE-2020-4879 is a vulnerability in IBM Cognos Controller versions 10.4.0, 10.4.1, and 10.4.2.
- The issue arises from the inadequate validation of authentication cookies, potentially enabling a remote attacker to bypass security measures.
The Impact of CVE-2020-4879
- CVSS Base Score: 7.3 (High)
- CVSS Temporal Score: 6.4 (Medium)
- Severity: High
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: Low
- Exploit Code Maturity: Unproven
- User Interaction: None
- Remediation Level: Official Fix
- Report Confidence: Confirmed
Technical Details of CVE-2020-4879
IBM Cognos Controller 10.4.0, 10.4.1, and 10.4.2 are affected by the following:
Vulnerability Description
- The vulnerability allows a remote attacker to bypass security restrictions by exploiting improper validation of authentication cookies.
Affected Systems and Versions
- IBM Cognos Controller versions 10.4.0, 10.4.1, and 10.4.2
Exploitation Mechanism
- The vulnerability can be exploited remotely by manipulating authentication cookies to bypass security controls.
Mitigation and Prevention
Immediate Steps to Take
- Apply the official fix provided by IBM to address the vulnerability.
- Monitor IBM's security bulletins for any updates or patches related to this issue.
Long-Term Security Practices
- Regularly update and patch IBM Cognos Controller to ensure the latest security fixes are in place.
- Implement network security measures to detect and prevent unauthorized access.
- Conduct security assessments and audits to identify and mitigate potential vulnerabilities.
Patching and Updates
- Stay informed about security updates and patches released by IBM for Cognos Controller.
- Prioritize the installation of security patches to protect against known vulnerabilities.