CVE-2006-2369
RealVNC 4.1.1, and other products that use RealVNC such as AdderLink IP and Cisco CallManager, allows remote attackers to bypass authentication via a...
- Published
- May 15, 2006
- Updated
- Aug 7, 2024
- Assigning CNA
- redhat
- Evidence observed
- May 15, 2006
Primary CVSS
nvd · CVSS 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:PHigh · next 30 days
- Percentile
- 99.8%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
RealVNC 4.1.1, and other products that use RealVNC such as AdderLink IP and Cisco CallManager, allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, as originally demonstrated using a long password.
Sources
modules/auxiliary/admin/vnc/realvnc_41_bypass.rb
Metasploit Framework modulesDeclared conditions
- verification: check_not_declared($.auxiliary_admin/vnc/realvnc_41_bypass.check)
modules/auxiliary/scanner/vnc/vnc_none_auth.rb
Metasploit Framework modulesDeclared conditions
- verification: check_not_declared($.auxiliary_scanner/vnc/vnc_none_auth.check)
- exploitsExploit
exploits and proof-of-concept vulnerability demonstration files from the team at Hacker House
redsand · multiple · May 16, 2006
H D Moore · multiple · May 15, 2006
Metasploit · windows · Aug 26, 2011
fdiskyou · windows · May 13, 2012
Responsible use
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