Adobe Reader and Adobe Acrobat Remote Code Execution

Notification Type: IBM Internet Security Systems Protection Alert
Notification Date: Feb. 12, 2008
Notification Version: 1.1
   
Name:

Adobe Reader and Adobe Acrobat Remote Code Execution

Public disclosure/
In the wild date:
Feb. 7, 2008 (vendor vuln disclosure), Jan. 20, 2008 (public exploits), end of Aug. 2008 (widespread exploitation)
CVE:

CVE-2007-5659 and CVE-2007-5663

Description:

Adobe Acrobat Reader and Adobe Acrobat 8.1.1 and earlier are vulnerable to multiple vulnerabilities that would allow an attacker to execute arbitrary code on a remote system by enticing a user to open a specially-crafted PDF file.  One of these vulnerabilities attacked in the wild in Jan. 2008.  At the end of Aug., attacks using this vulnerability started picking up and, within a few weeks, have reached widespread exploitation.

 

ISS Coverage

Product Content Version

Network Sensor 7.0
Proventia A
Proventia IPS (G/GX)
Server Sensor 7.0
Proventia Multifunction Appliance
Proventia Mail
Proventia Server (Linux)

XPU 28.020
Proventia Server (Windows)
Proventia Desktop
2160
BlackICE PC Protection 3.6 cqv
Propagation Techniques ISS Protection Available
web/remote exploit Buffer Overflow Exploit Prevention (BOEP)

PDF_JavaScript_Exploit
PDF_JavaScript_Detected
JavaScript_NOOP_Sled
Base version of Proventia Desktop/Server and RealSecure Server Sensor

Feb 13, 2008

Malicious program known
to be dropped by PDFs
circulating in the wild
(Zonebac)

Trojan.Zonebac (Proventia Desktop only)
Troj/Agent-GEP (Proventia M only)
Troj/Agent-EBS (Proventia M only)
Troj/Canida-Fam (Proventia M only)

June 22, 2007
Oct 23, 2007
Feb 7, 2007
Oct 24, 2007

Detailed Description

Business Impact: This vulnerability could result in remote code execution if a victim opens a specially crafted Adobe Acrobat (.pdf) document in an affected version of Adobe Reader or Adobe Acrobat.  As always, ensure that documents like PDFs come from a trusted source before opening them.
CVSS: Base Score: 9.3
  Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Complete
Integrity Impact: Complete
Availability Impact: Complete
Impact Bias: Normal 
Adjusted Temporal Score: 7.7
  Exploitability: Functional
Remediation Level: Official Fix
Report Confidence: Confirmed 
Affected Products: For a full list of affected software and versions, see references below.
Technical Description:

XFID 40410 (CVE-2007-5659)
Adobe Acrobat and Adobe Reader are vulnerable to multiple stack-based buffer overflows, caused by improper bounds checking by multiple unspecified JavaScript methods. By persuading a victim to open a specially-crafted .PDF file, a remote attacker could overflow a buffer and execute arbitrary code on the system with privileges of the victim or cause the application to crash.

XFID 40424 (CVE-2007-5663)
Adobe Reader could allow a remote attacker to execute arbitrary code, caused by the use of an insecure method in the JavaScript implementation used by the EScript.api plug-in. By persuading a victim to open a specially-crafted .PDF file, a remote attacker could exploit this vulnerability to corrupt memory and execute arbitrary code on the system with the privileges of the victim or cause the application to crash.

Remediation:

Users can upgrade to 8.1.2 to remediate this vulnerability.  Patches for other versions were not available as of Feb. 12, 2008, but were eventually released for 7.0.

References

XFDB http://xforce.iss.net/xforce/xfdb/40410
http://xforce.iss.net/xforce/xfdb/40424
Adobe http://www.adobe.com/support/security/advisories/apsa08-01.html

Revision History

1.0 Initial publication.
1.1 Added information about wide-spread exploitation, updated patch details, and added additional signature coverage information.

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