CVE-2017-1720 : What You Need to Know

IBM Notes 8.5 and 9.0 contain a vulnerability that could allow a local attacker to execute arbitrary commands through shared memory IPC. This CVE was published on February 8, 2018.

Understanding CVE-2017-1720

What is CVE-2017-1720?

IBM Notes 8.5 and 9.0 are susceptible to a flaw that enables a local attacker to run arbitrary commands by skillfully manipulating the command line via shared memory IPC.

The Impact of CVE-2017-1720

The vulnerability in IBM Notes 8.5 and 9.0 could empower a local perpetrator with the ability to execute arbitrary commands, posing a significant security risk.

Technical Details of CVE-2017-1720

Vulnerability Description

The shared memory IPC in IBM Notes 8.5 and 9.0 allows a local attacker to execute arbitrary commands through careful manipulation of the command line.

Affected Systems and Versions

Client Application Access by IBM versions 1.0.0.1, 1.0.1, 1.0.1.2
Notes by IBM versions 8.5.3.6, 8.5.1.5, 8.5.2.4, 9.0, 9.0.1.9

Exploitation Mechanism

The vulnerability can be exploited by an attacker with local access by meticulously crafting the command line.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security patches provided by IBM.
Monitor and restrict access to vulnerable systems.
Implement the principle of least privilege to limit potential damage.

Long-Term Security Practices

Conduct regular security training for employees on best practices.
Employ network segmentation to contain potential breaches.

Patching and Updates

Regularly update and patch IBM Notes installations to mitigate the risk of exploitation.