WEKA INTEREST Security Scanner 1.8 HTTP denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability was found in WEKA INTEREST Security Scanner 1.8 (Security Testing Software). It has been rated as problematic. This issue affects an unknown function of the component HTTP Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The program does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The bug was discovered 07/30/2007. The weakness was shared 06/05/2017 by Marc Ruef with scip AG as ID 101969 as confirmed entry (VulDB). The advisory is shared at vuldb.com. The public release happened without involvement of WEKA. The entry contains:

The Attack Tool Kit (ATK) is an exploiting framwork published under GPL3. Back in 2006 there was a legal dispute between the developer Marc Ruef and the German company WEKA. Ruef claimed that WEKA violated the open-source license while they were using parts of the project within their commercial vulnerability scanner. During the technical analysis of INTEREST SEcurity Scanner several security issues, which affect the handling of the vulnerability scanner, got determined.
The identification of this vulnerability is CVE-2017-20011. The exploitation is known to be easy. An attack has to be approached locally. The successful exploitation requires a simple authentication. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The advisory points out:
This version does not send a newline twice within HTTP plugins which leads to corrupt HTTP requests. These are not able to determine any issues.

A public exploit has been developed by Marc Ruef and been published immediately after the advisory. It is declared as proof-of-concept. The exploit is available at vuldb.com. The vulnerability was handled as a non-public zero-day exploit for at least 4265 days. During that time the estimated underground price was around $0-$5k.

The problem might be mitigated by replacing the product with ATK - Attack Tool Kit as an alternative.

computec.ch is providing further details. The entries 101970, 101971, 101972 and 101973 are related to this item.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 2.8
VulDB Meta Temp Score: 2.7

VulDB Base Score: 2.8
VulDB Temp Score: 2.7
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍


Class: Denial of service
CWE: CWE-404
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Marc Ruef
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Alternative
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Alternative: ATK - Attack Tool Kit


10/01/2005 🔍
07/30/2007 +667 days 🔍
06/05/2017 +3598 days 🔍
06/05/2017 +0 days 🔍
06/05/2017 +0 days 🔍
01/28/2022 +1698 days 🔍


Advisory: ID 101969
Researcher: Marc Ruef
Organization: scip AG
Status: Confirmed

CVE: CVE-2017-20011 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍


Created: 06/05/2017 10:20 PM
Updated: 01/28/2022 12:08 PM
Changes: (1) exploit_price_0day
Complete: 🔍


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