CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
Percentile
97.2%
The Adobe Acrobat Reader contains a vulnerability that may allow an attacker to execute arbitrary code.
Adobe Acrobat Reader is software designed to view Portable Document Format (PDF) files. Adobe also distributes the Adobe Acrobat Plug-In to allow users to view PDF files inside of a web browser.
Per iDefense Advisory 02.08.08:
_Remote exploitation of an insecure method exposed by the JavaScript library in Adobe Reader and Acrobat could allow an attacker to execute arbitrary code as the current user.
Adobe Reader and Acrobat implement a version of JavaScript in the EScript.api plug-in which is based on the reference implementation used in Mozilla products. One of the methods exposed allows direct control over low level features of the object, which in turn allows execution of arbitrary code._
By convincing a user to open a malicious PDF file, a remote, unauthenticated attacker may be able to execute arbitrary code. This can happen in several ways, such as opening an email attachment or viewing a web page.
Update
According to the information in Adobe Security bulletin APSB08-13, users with version 8 of Adobe Reader or Acrobat should upgrade to version 8.1.2. Users running version 7 of Adobe Reader or Acrobat should upgrade to version 7.1.0. This issue was intially address for version 8 of Adobe Reader and Acrobat in Adobe Security advisory APSA08-01.
Disable the displaying of PDF documents in the web browser
Preventing PDF documents from opening inside a web browser may prevent this vulnerability from being automatically exploited. If this workaround is applied to updated versions of the Adobe reader, it may mitigate future vulnerabilities.
To prevent PDF documents from automatically being opened in a web browser:
Edit
menu.preferences
option.Internet
section."``Display PDF in browser``"
check box.The installer for Adobe Reader and Acrobat configures Internet Explorer to automatically open PDF files without any user interaction. This behavior can be reverted to the safer option of prompting the user by importing the following as a .REG file:
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\AcroExch.Document.7]
"EditFlags"=hex:00,00,00,00
Disable JavaScript in Adobe Reader and Acrobat
Disabling Javascript may prevent this vulnerability from being exploited. Acrobat JavaScript can be disabled in the General preferences dialog (Edit
-> Preferences
-> JavaScript
and un-check Enable Acrobat JavaScript
).
Do not open untrusted PDF files
140129
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Updated: May 09, 2008
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
See <http://www.adobe.com/support/security/bulletins/apsb08-13.html> for more details.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23140129 Feedback>).
Group | Score | Vector |
---|---|---|
Base | ||
Temporal | ||
Environmental |
Thanks to Adobe and iDefense for information that was used in this report.
This document was written by Ryan Giobbi.
CVE IDs: | CVE-2007-5663 |
---|---|
Severity Metric: | 12.60 Date Public: |
labs.idefense.com/intelligence/vulnerabilities/display.php?id=656
plugindoc.mozdev.org/faqs/acroread.html
www.adobe.com/products/acrobat/access_onlinetools.html
www.adobe.com/products/acrobat/access_tools_faq.html
www.adobe.com/support/security/advisories/apsa08-01.html
www.adobe.com/support/security/bulletins/apsb08-13.html