CVE-2005-3058

Fortinet FortiGate 2.8 - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2005-3058. PoCs published by Mathieu Dessus.

AI-analyzed exploit summary This exploit demonstrates a URL filtering bypass vulnerability in Fortinet FortiGate devices by sending crafted HTTP requests. It tests various HTTP request formats to evade detection by the FortiGate URL filter.

Description

Interpretation conflict in Fortinet FortiGate 2.8, running FortiOS 2.8MR10 and v3beta, allows remote attackers to bypass the URL blocker via an (1) HTTP request terminated with a line feed (LF) and not carriage return line feed (CRLF) or (2) HTTP request with no Host field, which is still processed by most web servers without violating RFC2616.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Mathieu Dessus · perlremotehardware
https://www.exploit-db.com/exploits/27203

This exploit demonstrates a URL filtering bypass vulnerability in Fortinet FortiGate devices by sending crafted HTTP requests. It tests various HTTP request formats to evade detection by the FortiGate URL filter.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Fortinet FortiGate FortiOS v2.8MR10 and v3beta
No auth needed
Prerequisites: Network access to the FortiGate device · FortiGate device with URL filtering enabled
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (7)

Core 7
Core References
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/424858/100/0/threaded
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/24626
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/16599
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/18844
Vendor Advisory x_refsource_misc
http://www.fortiguard.com/advisory/FGA-2006-10.html
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/0539

Scores

EPSS 0.0310
EPSS Percentile 86.1%

Details

CWE
CWE-264
Status published
Products (2)
fortinet/fortigate 2.8
fortinet/fortios < 2.8_mr10
Published Dec 31, 2005
Tracked Since Feb 18, 2026