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Vulnerability Details : CVE-2008-4770

The CMsgReader::readRect function in the VNC Viewer component in RealVNC VNC Free Edition 4.0 through 4.1.2, Enterprise Edition E4.0 through E4.4.2, and Personal Edition P4.0 through P4.4.2 allows remote VNC servers to execute arbitrary code via crafted RFB protocol data, related to "encoding type."
Publish Date : 2009-01-16 Last Update Date : 2017-09-28
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- CVSS Scores & Vulnerability Types

CVSS Score
10.0
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access Admin
Vulnerability Type(s) Execute Code
CWE ID 20

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate 2009-01-16 2008-11-26
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- Related OVAL Definitions

Title Definition Id Class Family
DSA-1716 vnc4 -- integer overflow oval:org.mitre.oval:def:7807 unix
DSA-1716-1 vnc4 -- integer overflow oval:org.mitre.oval:def:13774 unix
ELSA-2009:0261: vnc security update (Moderate) oval:org.mitre.oval:def:22776 unix
RHSA-2009:0261 -- vnc security update (Moderate) oval:org.mitre.oval:def:29367 unix
RHSA-2009:0261: vnc security update (Moderate) oval:com.redhat.rhsa:def:20090261 unix
The CMsgReader::readRect function in the VNC Viewer component in RealVNC VNC Free Edition 4.0 through 4.1.2, Enterprise ... oval:org.mitre.oval:def:9367 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2008-4770

# Product Type Vendor Product Version Update Edition Language
1 Application Realvnc Realvnc E4.0 Enterprise Version Details Vulnerabilities
2 Application Realvnc Realvnc P4.0 Personal Version Details Vulnerabilities
3 Application Realvnc Realvnc P4.4.2 Personal Version Details Vulnerabilities
4 Application Realvnc Realvnc 4.0 Free Version Details Vulnerabilities
5 Application Realvnc Realvnc 4.1.2 Free Version Details Vulnerabilities
6 Application Realvnc Realvnc 4.4.2 Enterprise Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Realvnc Realvnc 6

- References For CVE-2008-4770

http://www.securityfocus.com/bid/33263
BID 33263 RealVNC 4.1.2 'vncviewer.exe' RFB Protocol Remote Code Execution Vulnerability Release Date:2009-03-09
http://www.vupen.com/english/advisories/2008/2868
VUPEN ADV-2008-2868
https://exchange.xforce.ibmcloud.com/vulnerabilities/45969
XF realvnc-cmsgreader-code-execution(45969)
https://exchange.xforce.ibmcloud.com/vulnerabilities/47937
XF realvnc-rfb-protocol-code-execution(47937)
https://www.redhat.com/archives/fedora-package-announce/2009-January/msg01025.html
FEDORA FEDORA-2009-1001
http://www.realvnc.com/products/upgrade.html CONFIRM
http://www.redhat.com/support/errata/RHSA-2009-0261.html
REDHAT RHSA-2009:0261
http://www.securityfocus.com/bid/31832
BID 31832 RealVNC 4.1.2 'CMsgReader::readRect()' Remote Code Execution Vulnerability Release Date:2008-10-21
http://www.realvnc.com/pipermail/vnc-list/2008-November/059432.html
MLIST [vnc-list] 20081126 VNC Viewer Vulnerability CVE-2008-4770
http://www.realvnc.com/products/free/4.1/release-notes.html CONFIRM
http://www.gentoo.org/security/en/glsa/glsa-200903-17.xml
GENTOO GLSA-200903-17
http://sunsolve.sun.com/search/document.do?assetkey=1-26-248526-1
SUNALERT 248526
http://sunsolve.sun.com/search/document.do?assetkey=1-21-140455-01-1 CONFIRM

- Metasploit Modules Related To CVE-2008-4770

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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