Published:
23 September 1999
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-1999.149 -- Microsoft Security Bulletin (MS99-39) Patch Available for "Domain Resolution" and "FTP Download" Vulnerabilities **CORRECTION TO SUMMARY TEXT** 24 September 1999 =========================================================================== Microsoft Corporation has released the following security bulletin concerning two vulnerabilities in Internet Information Server 4.0. IIS may grant a restricted user's first request for an access session to a web site if that user's IP does not resolve to a domain. It will correctly deny them thereafter. A user may access files by FTP from a system running IIS 4.0 under Windows NT 4.0 Service Pack 5 even if the file permissions should *not* allow it: http://www.microsoft.com/Security/Bulletins/MS99-039.asp =========================================================================== This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document referenced above, AusCERT has had no control over its content. The decision to use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. If you have any questions or need further information, please contact Microsoft Corporation directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBOBBwzSh9+71yA2DNAQHyRwP/bMQ+9Dcd+MaL/76VnV0YQ0cKlLDZ8J+6 3ykmYjq7V6u9Cy4pmdhN99n/yabyXwwhqqwbIk9ImKfLJM6m37zJnANNkePojDmH eT5TOITfBON866/InqFNEpsegxq7z3IuwxJvEL8s/+i0EJAyn9VqjqRHvtxkOC21 AWWt3LWKwbs= =KjU7 -----END PGP SIGNATURE-----