CVE-2019-11989 : Exploit Details and Defense Strategies
Learn about CVE-2019-11989, a security flaw in HPE IceWall SSO Agent Option and IceWall MFA allowing remote attackers to trigger a denial of service. Find out affected systems, exploitation details, and mitigation steps.
A security vulnerability in HPE IceWall SSO Agent Option and IceWall MFA (Agent module) could be exploited remotely to cause a denial of service. The affected versions and platforms include Apache 2.2 on RHEL 5 and 6, Apache 2.4 on RHEL 7, Apache 2.4 on HP-UX 11i v3, IIS on Windows, and Apache 2.4 on RHEL 7.
Understanding CVE-2019-11989
This CVE involves a remote Denial of Service (DoS) vulnerability in HPE IceWall SSO Agent Option and IceWall MFA.
What is CVE-2019-11989?
The vulnerability allows a remote attacker to exploit HPE IceWall SSO Agent Option and IceWall MFA (Agent module) to trigger a denial of service.
The Impact of CVE-2019-11989
The exploitation of this vulnerability could lead to a denial of service, disrupting the normal operation of the affected systems.
Technical Details of CVE-2019-11989
This section provides more technical insights into the CVE.
Vulnerability Description
The security flaw in HPE IceWall SSO Agent Option and IceWall MFA (Agent module) enables remote attackers to execute a denial of service attack.
Affected Systems and Versions
- IceWall SSO Agent Option versions 10.0 for Apache 2.2 on RHEL 5 and 6
- IceWall SSO Agent Option versions 10.0 for Apache 2.4 on RHEL 7
- IceWall SSO Agent Option versions 10.0 for Apache 2.4 on HP-UX 11i v3
- IceWall SSO Agent Option versions 10.0 for IIS on Windows
- IceWall SSO Agent Option versions 11.0 for Apache 2.4 on RHEL 7
- IceWall MFA Proxy 4.0 (Agent module only) for Apache 2.4 on RHEL 7
Exploitation Mechanism
The vulnerability can be exploited remotely by attackers to launch a denial of service attack on the affected systems.
Mitigation and Prevention
Protecting systems from CVE-2019-11989 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-supplied patches or updates to fix the vulnerability.
- Implement network security measures to prevent remote exploitation.
Long-Term Security Practices
- Regularly update and patch software to address security vulnerabilities.
- Conduct security assessments and audits to identify and mitigate potential risks.
Patching and Updates
- Stay informed about security advisories from the vendor.
- Apply patches promptly to secure the systems against known vulnerabilities.