WEKA INTEREST Security Scanner up to 1.8 Portscan memory allocation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

A vulnerability has been found in WEKA INTEREST Security Scanner up to 1.8 (Security Testing Software) and classified as problematic. This vulnerability affects an unknown code block of the component Portscan. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. As an impact it is known to affect 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 available at vuldb.com. The vendor was not involved in the coordination of the public release. 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.
This vulnerability was named CVE-2017-20016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The advisory points out:
After a portscan the software connects to chargen services which will cause a memory exhaustion.

A public exploit has been developed by Marc Ruef and been published immediately after the advisory. It is declared as proof-of-concept. It is possible to download the exploit at vuldb.com. The vulnerability was handled as a non-public zero-day exploit for at least 3598 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. The entry contains the following remark:

A restart of the software is not enough to eliminate this issue. De-installing and re-installing the whole software is required.

Additional details are provided at computec.ch. The entries 101969, 101970, 101971 and 101972 are related to this item.

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CVSSv3infoedit

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2infoedit

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

Exploitinginfoedit

Class: Denial of service
CWE: CWE-789
ATT&CK: Unknown

Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: Alternative
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Alternative: ATK - Attack Tool Kit

Timelineinfoedit

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

Sourcesinfoedit

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

CVE: CVE-2017-20016 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfoedit

Created: 06/05/2017 10:20 PM
Updated: 01/28/2022 12:28 PM
Changes: (4) source_cve source_cve_cna cna_responsible cna_eol
Complete: 🔍

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