TI-2005-01977 Aliases CVE-2005-2089 GHSA-h9j5-mj66-qp4g

Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web…

MEDIUM 44CWE-444Published 2005-06-30 · Updated 2024-08-07

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Medium
Impact type: —
Confidentiality · integrity · availability: None · Partial · None
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

Microsoft IIS 5.0 and 6.0 allows remote attackers to poison the web cache, bypass web application firewall protection, and conduct XSS attacks via an HTTP request with both a "Transfer-Encoding: chunked" header and a Content-Length header, which causes IIS to incorrectly handle and forward the body of the request in a way that causes the receiving server to process it as a separate HTTP request, aka "HTTP Request Smuggling."

Why it matters now

EPSS 0.3097 98th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:microsoft:internet_information_services:5.0:::::::*	5.0	Vulnerable	Microsoft
cpe:2.3:a:microsoft:internet_information_services:6.0:::::::*	6.0	Vulnerable	Microsoft

cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Microsoft
cpe:2.3:a:microsoft:internet_information_services:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2005-2089
2026-10-03 Alias added: GHSA-h9j5-mj66-qp4g

References

Advisory 1

20050606 A new whitepaper by Watchfire - HTTP Request Smuggling

Other 2

TI-2017-04947 Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet… KEVCVSS 3.1CRITICAL 9.8
TI-2010-03770 Heap-based buffer overflow in the TELNET_STREAM_CONTEXT::OnSendData function in… CVSS 2.0HIGH 10.0
TI-2007-02725 The "hit-highlighting" functionality in webhits.dll in Microsoft Internet Information… CVSS 2.0HIGH 10.0
TI-2009-01456 The WebDAV extension in Microsoft Internet Information Services (IIS) 5.1 and 6.0 allows… CVSS 2.0HIGH 7.5
TI-2009-01064 The WebDAV extension in Microsoft Internet Information Services (IIS) 5.0 on Windows 2000… CVSS 2.0HIGH 7.5
TI-2005-04103 The URL parser in Microsoft Internet Information Services (IIS) 5.1 on Windows XP… CVSS 2.0HIGH 7.8

See all 90 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences