A cybersecurity advisory was issued Tuesday, April 9, 2019, regarding multiple vulnerabilities in Adobe Flash Player. Successful exploitation of this vulnerability could allow arbitrary code execution.
What It Is:
Multiple vulnerabilities have been discovered in Adobe Flash Player, the most severe of which could allow for arbitrary code execution. Adobe Flash Player is a widely distributed multimedia and application player used to enhance the user experience when visiting web pages or reading email messages.
Successful exploitation of the most severe of these vulnerabilities could result in the attacker gaining control of the affected system. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of this vulnerability could have less impact than if it was configured with administrative rights.
See the original Adobe Security Advisory.
There have been no reports of these vulnerabilities being exploited in the wild.
What It Means:
If your business or organization employs Adobe Flash Player, you will need to apply the appropriate update after testing to prevent a possible security breach.
Systems Affected Include:
• Adobe Flash Player Desktop Runtime for Windows, macOS and Linux version 220.127.116.11 and earlier
• Adobe Flash Player for Google Chrome for Windows, macOS, Linux and Chrome OS version 18.104.22.168 and earlier
• Adobe Flash Player for Microsoft Edge and Internet Explorer for Windows 10 and 8. Version 111 22.214.171.124 and earlier
• Large and medium government entities: High
• Small government entities: Medium
• Large and medium business entities: High
• Small business entities: Medium
Home users: Low
Multiple vulnerabilities have been discovered in Adobe Flash Player, the most severe of which could allow for arbitrary code execution. The details of these vulnerabilities are as follows:
• An Out-of-bounds read vulnerability that could allow for Information Disclosure. (CVE-2019-7108)
• A Use After Free vulnerability that could allow for Arbitrary Code Execution. (CVE-2019-7096)
What To Do:
We recommend the following actions be taken:
• Apply the update provided by Adobe to vulnerable systems immediately after appropriate testing.
• Enable click-to-play to require user interaction before enabling SWF content for Internet Explorer 7 and below.
• Enable read-only protected view for Microsoft Office.
• Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
• Remind users not to visit websites or follow links provided by unknown or untrusted sources.
• Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from untrusted sources.
• Apply the Principle of Least Privilege to all systems and services.
Negative Consequences of Lost or Stolen Data:
The loss or theft of proprietary data can have severe impacts, particularly if the compromise becomes public and sensitive information is exposed. Possible impacts include:
• Temporary or permanent loss of sensitive or proprietary information.
• Disruption to regular operations.
• Financial losses incurred to restore systems and files.
• Potential harm to an organization’s reputation.
Should your agency or business need assistance with the detection of vulnerabilities in any of the above products or updates to include patches, Dox can help. Please contact Dox if there is anything we can do to assist in securing your agency, business, or organization.
Thank you for your time and stay safe online.