CVE-2019-0559 : Exploit Details and Defense Strategies
Learn about CVE-2019-0559, an information disclosure vulnerability in Microsoft Outlook impacting Office 365 ProPlus, Microsoft Office, and more. Find out the affected systems, exploitation mechanism, and mitigation steps.
A vulnerability related to the disclosure of information has been discovered in the way Microsoft Outlook handles specific message types. It has been identified as the 'Microsoft Outlook Information Disclosure Vulnerability' and can impact Office 365 ProPlus, Microsoft Office, and Microsoft Outlook.
Understanding CVE-2019-0559
What is CVE-2019-0559?
An information disclosure vulnerability exists when Microsoft Outlook improperly handles certain types of messages, aka 'Microsoft Outlook Information Disclosure Vulnerability.' This affects Office 365 ProPlus, Microsoft Office, and Microsoft Outlook.
The Impact of CVE-2019-0559
This vulnerability can have the following impacts:
- Unauthorized disclosure of sensitive information
- Potential compromise of user data
- Risk of privacy breaches
Technical Details of CVE-2019-0559
Vulnerability Description
The vulnerability allows attackers to access sensitive information due to improper handling of specific message types in Microsoft Outlook.
Affected Systems and Versions
The following systems and versions are affected:
- Microsoft Office 2019 for 32-bit editions
- Microsoft Office 2019 for 64-bit editions
- Office 365 ProPlus for 32-bit Systems
- Office 365 ProPlus for 64-bit Systems
- Microsoft Outlook 2010 Service Pack 2 (32-bit editions)
- Microsoft Outlook 2010 Service Pack 2 (64-bit editions)
- Microsoft Outlook 2013 RT Service Pack 1
- Microsoft Outlook 2013 Service Pack 1 (32-bit editions)
- Microsoft Outlook 2013 Service Pack 1 (64-bit editions)
- Microsoft Outlook 2016 (32-bit edition)
- Microsoft Outlook 2016 (64-bit edition)
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted messages to the target users, tricking them into disclosing sensitive information.
Mitigation and Prevention
Immediate Steps to Take
To mitigate the risks associated with CVE-2019-0559, users and organizations should:
- Apply security patches provided by Microsoft promptly
- Educate users about potential phishing attempts
- Monitor email communications for suspicious activities
Long-Term Security Practices
To enhance overall security posture, consider implementing the following practices:
- Regular security training for employees
- Implementing email filtering and monitoring solutions
- Keeping software and systems up to date
Patching and Updates
Ensure that all affected systems and software versions are updated with the latest security patches from Microsoft.