Published:
11 October 1999
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-1999.154 -- Microsoft Security Bulletin (MS99-042) Workaround Available for "IFRAME ExecCommand" Vulnerability 12 October 1999 =========================================================================== Microsoft Corporation has released the following security bulletin concerning a vulnerability in an IE5 Active Scripting method called 'ExecCommand'. If ExecCommand is executed from within an IFRAME, some normal security checks are not performed. This may allow a malicious web site operator to read files on the visiting browser's computer. A workaround has been provided by Microsoft to eliminate this vulnerability: http://www.microsoft.com/Security/Bulletins/MS99-042.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 iQCVAwUBOBBw6Sh9+71yA2DNAQE/2AP+LQYAS1bIG5g6eKiSuMc0pN16suLuBy1b 3ShqQU67uLKk94JTmtRjC6sxUYbel1+dy/874hNfJfmnWVJS4+e0HezmGZopiTnQ nRNbtR8WgNp0idCDxOAlB/Um/7ogyNtlZ0xAkZ8lYr3tYGA3L6Eeerdt8+PjAl2K Gw98QU9/eVo= =08GJ -----END PGP SIGNATURE-----