CVE-2012-5100

HServer 0.1.1 - Path Traversal via Encoded Dot-Dot-Backslash Sequences

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2012-5100. PoCs published by demonalex.

AI-analyzed exploit summary This exploit demonstrates a directory traversal vulnerability in HServer 0.1.1 by using URL-encoded sequences (e.g., ..%5c) to access arbitrary files outside the web root. The PoC provides example URLs to retrieve sensitive files like boot.ini and hosts.

Description

Directory traversal vulnerability in HServer 0.1.1 allows remote attackers to read arbitrary files via a (1) ..%5c (dot dot encoded backslash) or (2) %2e%2e%5c (encoded dot dot backslash) in the PATH_INFO.

Exploits (1)

exploitdb WORKING POC VERIFIED
by demonalex · textremotewindows
https://www.exploit-db.com/exploits/36500

This exploit demonstrates a directory traversal vulnerability in HServer 0.1.1 by using URL-encoded sequences (e.g., ..%5c) to access arbitrary files outside the web root. The PoC provides example URLs to retrieve sensitive files like boot.ini and hosts.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: HServer 0.1.1
No auth needed
Prerequisites: Network access to the vulnerable HServer instance
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/72138
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/51286
Exploit mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2012-01/0028.html

Scores

EPSS 0.0788
EPSS Percentile 94.0%

Details

CWE
CWE-22
Status published
Products (1)
luizpicanco/hserver 0.1.1
Published Sep 23, 2012
Tracked Since Feb 18, 2026