CVE-2020-8855: Foxit PhantomPDF fxhtml2pdf Use-After-Free Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.7.0.2947. 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 fxhtml2pdf.exe module. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-9560.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Foxit PhantomPDF 9.7.0.2947 (fxhtml2pdf.exe)to a version that resolves this vulnerability.Fixed in 9.7.0.2947Patch ZDI-CAN-9560 - Compensating control
Because user interaction is required (target must visit a malicious page or open a malicious file), mitigate by preventing/limiting access to untrusted web content and disabling opening of untrusted documents in the Foxit PhantomPDF environment.
Event History
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2020-8855.
What software products are affected by this vulnerability?
The affected software products are Foxit PhantomPDF and Foxitsoftware Reader.
What is the severity of CVE-2020-8855?
The severity of CVE-2020-8855 is high (7.8).
How can this vulnerability be exploited?
This vulnerability can be exploited by remote attackers through user interaction, such as visiting a malicious page or opening a malicious file.
Where can I find more information about CVE-2020-8855?
You can find more information about CVE-2020-8855 on the Foxit Software support website and the Zero Day Initiative advisories page.
What is the Common Weakness Enumeration (CWE) ID for this vulnerability?
The Common Weakness Enumeration (CWE) ID for this vulnerability is CWE-416.