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zdiDave Weinstein - HP Zero Day InitiativeZDI-15-205
HistoryMay 12, 2015 - 12:00 a.m.

Adobe Acrobat Reader AFSimple_Calculate Javascript API Restrictions Bypass Vulnerability

2015-05-1200:00:00
Dave Weinstein - HP Zero Day Initiative
www.zerodayinitiative.com
11

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

0.034 Low

EPSS

Percentile

91.4%

This vulnerability allows remote attackers to bypass API restrictions on vulnerable installations of Adobe 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 AFNSimple_Calculate function. By creating a specially crafted PDF with specific JavaScript instructions, it is possible to bypass the JavaScript API restrictions. A remote attacker could exploit this vulnerability to execute arbitrary code.

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

0.034 Low

EPSS

Percentile

91.4%