CVE-2017-12943

CRITICAL

D-Link DIR-600 B1 v2.x - Unauthenticated Path Traversal via __show_info.php REQUIRE_FILE Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2017-12943. PoCs published by Jithin D Kurup, d4rk30, aymankhalfatni.

AI-analyzed exploit summary This exploit demonstrates an authentication bypass via absolute path traversal in D-Link DIR-600 routers (firmware 2.01). By appending a specific payload to the URL, an attacker can read the admin password from the httpasswd file.

Description

D-Link DIR-600 Rev Bx devices with v2.x firmware allow remote attackers to read passwords via a model/__show_info.php?REQUIRE_FILE= absolute path traversal attack, as demonstrated by discovering the admin password.

Exploits (3)

exploitdb WORKING POC
by Jithin D Kurup · textwebappshardware
https://www.exploit-db.com/exploits/42581

This exploit demonstrates an authentication bypass via absolute path traversal in D-Link DIR-600 routers (firmware 2.01). By appending a specific payload to the URL, an attacker can read the admin password from the httpasswd file.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: D-Link DIR-600 B1 with firmware 2.01
No auth needed
Prerequisites: network access to the router · router with public IP or local network access
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WRITEUP
by aymankhalfatni · poc
https://github.com/aymankhalfatni/D-Link

This repository contains a README file describing an authentication bypass vulnerability (CVE-2017-12943) in D-Link DIR-600 modems. The writeup is in Arabic and explains how to exploit the flaw to gain unauthorized access without a password.

Classification
Writeup 80%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: D-Link DIR-600
No auth needed
Prerequisites: network access to the target device
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory x_refsource_misc
https://www.youtube.com/watch?v=PeNOJORAQsQ
Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/42581/

Scores

CVSS v3 9.8
EPSS 0.3922
EPSS Percentile 98.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-22
Status published
Products (1)
dlink/dir-600_b1_firmware 2.01
Published Aug 18, 2017
Tracked Since Feb 18, 2026