What’s Vulnerable › Vulnerabilities

CVE-1999-1538

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 25.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2001-09-12 · updated 2026-06-16

Description

When IIS 2 or 3 is upgraded to IIS 4, ism.dll is inadvertently left in /scripts/iisadmin, which does not restrict access to the local machine and allows an unauthorized user to gain access to sensitive server information, including the Administrator's password.

Affected products

• Microsoft Internet Information Server: 4.0

References

• http://marc.info/?l=bugtraq&m=91638375309890&w=2
• http://marc.info/?l=ntbugtraq&m=91632724913080&w=2
• http://www.securityfocus.com/bid/189
• http://marc.info/?l=bugtraq&m=91638375309890&w=2
• http://marc.info/?l=ntbugtraq&m=91632724913080&w=2
• http://www.securityfocus.com/bid/189

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