{"vuid":"VU#570330","idnumber":"570330","name":"MS Windows NT Terminal Server 4.0 buffer overflow in regapi.dll allows remote code execution or DoS","keywords":["windows","security","terminal server","port 3389"],"overview":"Microsoft Windows NT 4.0 Terminal Server contains a buffer overflow that could allow an intruder to execute arbitrary code with the privileges of an administrator.","clean_desc":"There is a buffer overflow in the code that processes the username (specifically in RegAPI.DLL) in Microsoft Windows NT 4.0 Terminal Server. This allows an intruder to submit a specially crafted username in such a way as to cause Terminal Server to execute code of the intruder's choosing. The intruder does not need to have a valid username or password; anyone with access to port 3389/TCP can exploit this vulnerability.","impact":"Intruders can execute arbitrary code with the privileges of a logged in administrator. Additionally, an intruder who can log in locally can cause Terminal Server to crash.","resolution":"Apply a patch as described in http://www.microsoft.com/ntserver/terminalserver/downloads/critical/q277910/default.asp.","workarounds":"You may also with to block access to port 3389/TCP to reduce your exposure to this vulnerability. This does not eliminate the vulnerability, but it does reduce the number of people who can exploit it.","sysaffected":"","thanks":"This vulnerability was discovered by Bruno Acselrad of CORE SDI S.A., Buenos Aires, Argentina.","author":"This document was written by Shawn V. Hernan.","public":["http://www.securityfocus.com/bid/1924","http://www.microsoft.com/technet/security/bulletin/ms00-087.asp","http://www.microsoft.com/technet/security/bulletin/fq00-087.asp"],"cveids":["CVE-2000-1149"],"certadvisory":"","uscerttechnicalalert":null,"datecreated":"2000-12-05T21:10:24Z","publicdate":"2000-11-08T00:00:00Z","datefirstpublished":"2001-08-15T04:29:37Z","dateupdated":"2001-08-15T04:29:39Z","revision":6,"vrda_d1_directreport":"","vrda_d1_population":"","vrda_d1_impact":"","cam_widelyknown":"15","cam_exploitation":"0","cam_internetinfrastructure":"5","cam_population":"10","cam_impact":"20","cam_easeofexploitation":"15","cam_attackeraccessrequired":"15","cam_scorecurrent":"16.875","cam_scorecurrentwidelyknown":"21.09375","cam_scorecurrentwidelyknownexploited":"37.96875","ipprotocol":"","cvss_accessvector":"","cvss_accesscomplexity":"","cvss_authentication":null,"cvss_confidentialityimpact":"","cvss_integrityimpact":"","cvss_availabilityimpact":"","cvss_exploitablity":null,"cvss_remediationlevel":"","cvss_reportconfidence":"","cvss_collateraldamagepotential":"","cvss_targetdistribution":"","cvss_securityrequirementscr":"","cvss_securityrequirementsir":"","cvss_securityrequirementsar":"","cvss_basescore":"","cvss_basevector":"","cvss_temporalscore":"","cvss_environmentalscore":"","cvss_environmentalvector":"","metric":16.875,"vulnote":null}