Signature Detail

HTTP: Foxit Reader and PhantomPDF XFA xdpContent Information Disclosure

This signature detects attempts to exploit a known vulnerability Foxit Reader and PhantomPDF. Successful exploitation would allow the attacker to gain sensitive information.

Extended Description

An exploitable out-of-bounds read vulnerability exists in the handling of certain XFA element attributes of Foxit Software's PDF Reader version 9.1.0.5096. A specially crafted PDF document can trigger an out-of-bounds read, which can disclose sensitive memory content and aid in exploitation when coupled with another vulnerability. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.

Affected Products

• Foxitsoftware phantompdf 9.3.0.10826
• Foxitsoftware reader 9.3.0.10826

References

• CVE: CVE-2018-3956
• URL: https://www.talosintelligence.com/vulnerability_reports/talos-2018-0626
• URL: https://www.foxitsoftware.com/support/security-bulletins.php#content-2019