CVE-1999-0736

Internet Information Server - Arbitrary File Read via showcode.asp

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-1999-0736. PoCs published by L0pht.

AI-analyzed exploit summary The writeup describes a directory traversal vulnerability in Microsoft IIS 4.0's default ASP scripts (showcode.asp, CodeBrws.asp), allowing remote attackers to read arbitrary files on the same volume as the web server by manipulating the 'source' parameter with '../' sequences. No functional exploit code is provided, but technical details and example URLs are included.

Description

The showcode.asp sample file in IIS and Site Server allows remote attackers to read arbitrary files.

Exploits (1)

exploitdb WRITEUP VERIFIED
by L0pht · textremotemultiple
https://www.exploit-db.com/exploits/19129

The writeup describes a directory traversal vulnerability in Microsoft IIS 4.0's default ASP scripts (showcode.asp, CodeBrws.asp), allowing remote attackers to read arbitrary files on the same volume as the web server by manipulating the 'source' parameter with '../' sequences. No functional exploit code is provided, but technical details and example URLs are included.

Classification
Writeup 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Microsoft Internet Information Server (IIS) 4.0
No auth needed
Prerequisites: IIS 4.0 with default sample ASP scripts installed
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2
Core References
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A932

Scores

EPSS 0.4485
EPSS Percentile 98.6%

Details

Status published
Products (1)
microsoft/internet_information_server 4.0
Published May 07, 1999
Tracked Since Feb 18, 2026