Advisory Details

August 15th, 2023

(Pwn2Own) Adobe Acrobat Reader DC Object Prototype Pollution API Restrictions Bypass

ZDI-23-1107
ZDI-CAN-20712

CVE ID CVE-2023-26405
CVSS SCORE 5.3, AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Acrobat Reader DC
VULNERABILITY DETAILS

This vulnerability allows remote attackers to bypass API restrictions on affected installations of Adobe Acrobat Reader DC. 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 Object data types. The issue results from the lack of control over modifications to attributes of object prototypes. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

ADDITIONAL DETAILS Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb23-24.html
DISCLOSURE TIMELINE
  • 2023-03-30 - Vulnerability reported to vendor
  • 2023-08-15 - Coordinated public release of advisory
CREDIT AbdulAziz Hariri of Haboob SA
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