Vulnerabilities > CVE-2008-5492 - Buffer Errors vulnerability in Verypdf Verydoc PDF Viewer 2.0.0.1

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
verypdf
CWE-119
critical
exploit available
metasploit

Summary

Heap-based buffer overflow in the PDFVIEW.PdfviewCtrl.1 ActiveX control in pdfview.ocx 2.0.0.1 in VeryDOC PDF Viewer OCX Control allows remote attackers to execute arbitrary code via a long first argument to the OpenPDF method. NOTE: some of these details are obtained from third party information.

Vulnerable Configurations

Part Description Count
Application
Verypdf
1

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Exploit-Db

  • descriptionVeryPDF PDFView ActiveX Component Heap Buffer Overflow Vulnerability. CVE-2008-5492. Dos exploit for windows platform
    idEDB-ID:32587
    last seen2016-02-03
    modified2008-11-15
    published2008-11-15
    reporterr0ut3r
    sourcehttps://www.exploit-db.com/download/32587/
    titleVeryPDF PDFView ActiveX Component Heap Buffer Overflow Vulnerability
  • descriptionVeryPDF PDFView OCX ActiveX OpenPDF Heap Overflow. CVE-2008-5492. Remote exploit for windows platform
    idEDB-ID:16520
    last seen2016-02-02
    modified2010-09-20
    published2010-09-20
    reportermetasploit
    sourcehttps://www.exploit-db.com/download/16520/
    titleVeryPDF PDFView - OCX ActiveX OpenPDF Heap Overflow
  • descriptionVeryPDF PDFView OCX ActiveX OpenPDF Heap Overflow PoC. CVE-2008-5492. Dos exploit for windows platform
    fileexploits/windows/dos/7126.html
    idEDB-ID:7126
    last seen2016-02-01
    modified2008-11-15
    platformwindows
    port
    published2008-11-15
    reporterr0ut3r
    sourcehttps://www.exploit-db.com/download/7126/
    titleVeryPDF PDFView - OCX ActiveX OpenPDF Heap Overflow PoC
    typedos

Metasploit

descriptionThe VeryPDF PDFView ActiveX control is prone to a heap buffer-overflow because it fails to properly bounds-check user-supplied data before copying it into an insufficiently sized memory buffer. An attacker can exploit this issue to execute arbitrary code within the context of the affected application.
idMSF:EXPLOIT/WINDOWS/BROWSER/VERYPDF_PDFVIEW
last seen2020-03-10
modified2017-07-24
published2009-01-04
referenceshttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5492
reporterRapid7
sourcehttps://github.com/rapid7/metasploit-framework/blob/master//modules/exploits/windows/browser/verypdf_pdfview.rb
titleVeryPDF PDFView OCX ActiveX OpenPDF Heap Overflow