Advisory Details

July 5th, 2019

Foxit Reader Format String Information Disclosure Vulnerability

ZDI-19-635
ZDI-CAN-8544

CVE ID CVE-2019-13318
CVSS SCORE 5.5, (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
AFFECTED VENDORS Foxit
AFFECTED PRODUCTS Reader
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit Reader. 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 processing of the util.printf Javascript method. The application processes the %p parameter in the format string, allowing heap addresses to be returned to the script. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

ADDITIONAL DETAILS Foxit has issued an update to correct this vulnerability. More details can be found at:
https://www.foxitsoftware.com/support/security-bulletins.php
DISCLOSURE TIMELINE
  • 2019-06-13 - Vulnerability reported to vendor
  • 2019-07-05 - Coordinated public release of advisory
CREDIT banananapenguin
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