VDB-102940 · CVE-2017-6017 · BID 96414

Schneider Electric Modicon M340 BMX Packet resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Schneider Electric Modicon M340 BMX. This affects an unknown part of the component Packet Handler. Executing a manipulation can lead to resource consumption. This vulnerability is registered as CVE-2017-6017. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Schneider Electric Modicon M340 BMX (SCADA Software) (unknown version). It has been declared as problematic. This vulnerability affects an unknown code block of the component Packet Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. CVE summarizes:

A Resource Exhaustion issue was discovered in Schneider Electric Modicon M340 PLC BMXNOC0401, BMXNOE0100, BMXNOE0110, BMXNOE0110H, BMXNOR0200H, BMXP341000, BMXP342000, BMXP3420102, BMXP3420102CL, BMXP342020, BMXP342020H, BMXP342030, BMXP3420302, BMXP3420302H, and BMXP342030H. A remote attacker could send a specially crafted set of packets to the PLC causing it to freeze, requiring the operator to physically press the reset button on the PLC in order to recover.

The bug was discovered 02/23/2017. The weakness was published 06/30/2017 by Martin with Cisco (Website). The advisory is shared for download at ics-cert.us-cert.gov. This vulnerability was named CVE-2017-6017 since 02/16/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability was handled as a non-public zero-day exploit for at least 126 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96414†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103382
OpenVAS Name: Schneider Electric Modicon M340 DoS Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/16/2017 🔍
02/23/2017 +7 days 🔍
02/23/2017 +0 days 🔍
06/29/2017 +126 days 🔍
06/30/2017 +1 days 🔍
06/30/2017 +0 days 🔍
12/30/2020 +1279 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: ics-cert.us-cert.gov
Researcher: Luis Francisco Martin Liras. (Martin)
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-6017 (🔍)
GCVE (CVE): GCVE-0-2017-6017
GCVE (VulDB): GCVE-100-102940
SecurityFocus: 96414 - Schneider Electric Modicon M340 PLC CVE-2017-6017 Denial of Service Vulnerability

Entryinfo

Created: 06/30/2017 10:48
Updated: 12/30/2020 10:03
Changes: 06/30/2017 10:48 (64), 10/31/2019 07:30 (5), 12/30/2020 10:03 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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