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.
References
Link Resource
http://marc.info/?l=full-disclosure&m=114768344111131&w=2
http://marc.info/?l=vnc-list&m=114755444130188&w=2
http://seclists.org/fulldisclosure/2022/May/29
http://secunia.com/advisories/20107 Patch Vendor Advisory
http://secunia.com/advisories/20109 Patch Vendor Advisory
http://secunia.com/advisories/20789 Vendor Advisory
http://securityreason.com/securityalert/8355
http://securitytracker.com/id?1016083 Exploit Patch
http://www.cisco.com/warp/public/707/cisco-sr-20060622-cmm.shtml
http://www.intelliadmin.com/blog/2006/05/security-flaw-in-realvnc-411.html
http://www.intelliadmin.com/blog/2006/05/vnc-flaw-proof-of-concept.html Exploit Patch
http://www.kb.cert.org/vuls/id/117929 Patch Third Party Advisory US Government Resource
http://www.osvdb.org/25479
http://www.realvnc.com/products/free/4.1/release-notes.html Patch
http://www.securityfocus.com/archive/1/433994/100/0/threaded
http://www.securityfocus.com/archive/1/434015/100/0/threaded
http://www.securityfocus.com/archive/1/434117/100/0/threaded
http://www.securityfocus.com/archive/1/434518/100/0/threaded
http://www.securityfocus.com/archive/1/434560/100/0/threaded
http://www.securityfocus.com/archive/1/438175/100/0/threaded
http://www.securityfocus.com/archive/1/438368/100/0/threaded
http://www.securityfocus.com/bid/17978 Exploit Patch
http://www.vupen.com/english/advisories/2006/1790 Vendor Advisory
http://www.vupen.com/english/advisories/2006/1821 Vendor Advisory
http://www.vupen.com/english/advisories/2006/2492 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/26445
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2006-05-15T16:00:00

Updated: 2022-05-13T17:06:11

Reserved: 2006-05-15T00:00:00


Link: CVE-2006-2369

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2006-05-15T16:06:00.000

Modified: 2022-05-13T18:15:08.127


Link: CVE-2006-2369

JSON object: View

cve-icon Redhat Information

No data.

CWE