Security readout for executives and security teams
Plain-English summary
A malicious website could craft a link to a trusted Microsoft IIS web server that caused the server's error page to reflect attacker-supplied script back to a victim's browser. The victim's browser then ran that script as if it came from the trusted site, enabling session theft or content spoofing. This is a variant of the original IIS cross-site scripting issue tracked as CVE-2000-0746.
Executive priority
Low priority for modern environments. Treat as a hygiene and asset-inventory item: confirm no legacy IIS 4.0/5.0 servers remain in service. If any are found, prioritize decommissioning or upgrading rather than patching, since the underlying platform is long out of support.
Technical view
Reflected cross-site scripting variant in Microsoft IIS related to MS00-060. Error responses returned unquoted user-controlled input from a request, allowing script embedded in a crafted link to execute in the context of the trusted IIS site. Impact is limited to the browser's same-origin trust of the vulnerable server. Referenced advisory (MS00-060) describes the original class of issue and Microsoft's fix guidance.
Likely exposure
Extremely limited today. Affected IIS versions from the 2000-era Windows NT 4.0 / Windows 2000 IIS 4.0/5.0 stack are effectively out of support and rare in production. Exposure exists only where legacy unpatched IIS servers remain internet-reachable and users can be lured to attacker-controlled links pointing at them.
Exploitation context
No CISA KEV listing and no cited evidence of active exploitation. The public source bundle documents this as a variant of an earlier IIS XSS class rather than a novel exploitation campaign. Any modern risk stems from unmaintained legacy IIS hosts, not ongoing threat actor targeting of this specific CVE.
Researcher notes
Source bundle lacks CVSS, CWE, and specific affected product/version data, so precise scoping relies on MS00-060 context. This is a reflected XSS variant against IIS error responses; expect CWE-79 in practice. No exploit code or KEV entry is cited. Confirm the exact vulnerable IIS build and hotfix ID via the Microsoft advisory before declaring a host patched.
Mitigation direction
- Apply the Microsoft patch referenced in bulletin MS00-060 to any surviving legacy IIS 4.0/5.0 hosts.
- Retire or upgrade end-of-life IIS servers to a currently supported Windows Server and IIS release.
- Place any unavoidable legacy IIS behind a WAF that strips script in error-page reflections.
- Enforce Content Security Policy and HttpOnly session cookies on the trusted site to blunt XSS impact.
- Confirm no public-facing hosts still run vulnerable IIS versions via asset inventory.
Validation and detection
- Inventory IIS versions across the estate and flag any pre-IIS 6 systems still reachable.
- Review MS00-060 patch state on any confirmed legacy IIS host.
- Fuzz error-generating URLs on suspect IIS hosts with benign markers to see if input is reflected unencoded.
- Check web server and WAF logs for crafted URLs targeting IIS error handlers.
- Validate that browsers no longer trust these legacy hosts by removing them from allowlists and SSO trust.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2000-1104 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- MS00-060CVE reference · vendor-advisory, x_refsource_MS
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.