D-Link DIR 1.02/1.12 URL Filter input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability classified as problematic was found in D-Link DIR 1.02/1.12 (Router Operating System). This vulnerability affects an unknown function of the component URL Filter Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity. CVE summarizes:

The web proxy service on the D-Link DIR-100 with firmware 1.12 and earlier does not properly filter web requests with large URLs, which allows remote attackers to bypass web restriction filters.

The weakness was presented 09/08/2008 by Marc Ruef with scip AG as not defined mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability was named CVE-2008-4133 since 09/19/2008. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at youtube.com. It is declared as highly functional. As 0-day the estimated underground price was around $25k-$100k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (44961).

Productinfo

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CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

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Price Prediction: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/29/2008 🔍
09/08/2008 +10 days 🔍
09/08/2008 +0 days 🔍
09/08/2008 +0 days 🔍
09/09/2008 +1 days 🔍
09/19/2008 +9 days 🔍
09/19/2008 +0 days 🔍
03/16/2021 +4561 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: seclists.org
Researcher: Marc Ruef
Organization: scip AG
Status: Not defined

CVE: CVE-2008-4133 (🔍)
X-Force: 44961 - D-Link DIR-100 Web proxy filter security bypass, Medium Risk
SecurityTracker: 1020825 - D-Link DIR-100 Router URL Filter Can Be Bypassed By Remote Users
SecurityFocus: 31050 - D-Link DIR-100 Security Bypass Vulnerability
Secunia: 31767 - D-Link DIR-100 Ethernet Broadband Router URL Filtering Bypass, Less Critical
OSVDB: 47961 - D-Link DIR-100 Ethernet Broadband Router Long URL Filtering Bypass

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/29/2008 13:05
Updated: 03/16/2021 18:52
Changes: 08/29/2008 13:05 (72), 10/08/2018 14:55 (4), 03/16/2021 18:52 (7)
Complete: 🔍

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