Adobe Reader DC XSLT lang Type Confusion Remote Code Execution Vulnerability

January 10th, 2017
ZDI-17-026 ZDI-CAN-4213

CVE ID

CVE-2017-2962

CVSS Score

6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected Vendors

Adobe

Affected Products

Acrobat Reader DC

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable 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 XSLT's lang 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.

Additional Details

Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb17-01.html

Disclosure Timeline

  • 2016-11-30 - Vulnerability reported to vendor
  • 2017-01-10 - Coordinated public release of advisory

Credit

Nicolas Grégoire (Agarri)

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