Dreambox DM500 Web Server long URL input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.04

A vulnerability classified as critical has been found in Dreambox DM500 (version now known). This affects some unknown processing of the component Web Server. The manipulation as part of a long URL leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

The web interface in Dreambox DM500C allows remote attackers to cause a denial of service (application hang) via a long URI.

The bug was discovered 04/28/2008. The weakness was disclosed 08/29/2008 by Marc Ruef with scip AG (Full-Disclosure). It is possible to read the advisory at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2008-3936 since 09/05/2008. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. The exploit is shared for download at computec.ch. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 10320 (Web Server Long URL Handling Remote Overflow DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r.

It is possible to mitigate the weakness by firewalling .

The vulnerability is also documented in the databases at X-Force (44788) and Tenable (10320). The entries 15084, 15253, 15734 and 15745 are pretty similar.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.5
VulDB Temp Score: 6.8
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: Proof-of-Concept
Download: 🔍

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Nessus ID: 10320
Nessus Name: Web Server Long URL Handling Remote Overflow DoS
Nessus File: 🔍
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Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

06/22/1999 🔍
04/28/2008 +3233 days 🔍
08/19/2008 +113 days 🔍
08/29/2008 +10 days 🔍
08/29/2008 +0 days 🔍
08/29/2008 +0 days 🔍
08/29/2008 +0 days 🔍
09/02/2008 +4 days 🔍
09/05/2008 +2 days 🔍
09/05/2008 +0 days 🔍
03/16/2021 +4575 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Marc Ruef
Organization: scip AG
Status: Not defined

CVE: CVE-2008-3936 (🔍)
X-Force: 44788 - Dreambox DM500 Web interface denial of service, Medium Risk
SecurityTracker: 1020784
SecurityFocus: 30919 - Dreambox Web Interface URI Remote Denial of Service Vulnerability
Secunia: 31650 - Dreambox DM500 Series Denial of Service and File Disclosure Vulnerabilities, Less Critical
OSVDB: 47879 - Dreambox DM500 Web Interface URL Handling Remote DoS
Vupen: ADV-2008-2472

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

Entryinfo

Created: 08/19/2008 17:26
Updated: 03/16/2021 18:46
Changes: 08/19/2008 17:26 (80), 10/08/2018 14:55 (8), 03/16/2021 18:46 (3)
Complete: 🔍

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