CVE-2018-9943: Incorrect Type Cast
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.0.29935. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the openList method. The issue results from the lack of proper validation of user-supplied data, which can result in a type confusion condition. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-5377.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Foxit Readerto a version that resolves this vulnerability.Fixed in 9.0.0.29935Patch ZDI-CAN-5377 - Compensating control
Because the vulnerability requires user interaction (target must visit a malicious page or open a malicious file), use email/web/file filtering and user access controls to reduce exposure to malicious pages/files.
Event History
Frequently Asked Questions
What is the severity of CVE-2018-9943?
CVE-2018-9943 is rated as a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2018-9943?
To mitigate CVE-2018-9943, upgrade Foxit Reader or Foxit PhantomPDF to version 9.0.1.1050 or later.
What products are affected by CVE-2018-9943?
CVE-2018-9943 affects Foxit Reader up to version 9.0.1.1049 and Foxit PhantomPDF up to version 9.0.1.1049.
Is user interaction required to exploit CVE-2018-9943?
Yes, user interaction is required as the victim must either visit a malicious page or open a malicious file.
What type of vulnerability is CVE-2018-9943?
CVE-2018-9943 is a remote code execution vulnerability that allows attackers to execute arbitrary code on affected systems.