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Arpine Maghakyan

Arpine Maghakyan

Security Researcher of RedRays.

Denial of service (DOS) in OPC UA applications of SAP Plant Connectivity, SAP security note 2674215

Description

Denial of service (DOS) in OPC UA applications of SAP Plant Connectivity.

1.The SAP Plant Connectivity OPC UA server (and, to some extent, the OPC UA clients) allows an attacker to prevent legitimate users from accessing a service, either by crashing or  flooding the service by using XML XXE vulnerability.

Some well-known impacts of Denial of Service vulnerability are –

  • long response delays and service interruptions, thus degrading the service quality experienced by legitimate users
  • direct impact on availability    

CVE Details :  NIST ID CVE-2018-12585

CVSS Information

CVSS v3 Base Score: 8.2 / 10
CVSS v3 Base Vector:

AV : Attack Vector (Related exploit range)

Network (N)

AC : Attack Complexity (Required attack complexity)

Low (L)

PR : Privileges Required (Level of privileges needed to exploit)

None (N)

UI : User Interaction (Required user participation)

None (N)

S : Scope (Change in scope due to impact caused to components beyond the vulnerable component)

Unchanged (U)

C : Impact to Confidentiality

Low (L)

I : Impact to Integrity

None (N)

A : Impact to Availability

High (H)

SAP provides this CVSS v3 base score as an estimate of the risk posed by the issue reported in this note. This estimate does not take into account your own system configuration or operational environment. It is not intended to replace any risk assessments you are advised to conduct when deciding on the applicability or priority of this SAP security note. For more information, see the FAQ section at https://support.sap.com/securitynotes.

2.The SAP Plant Connectivity OPC UA server (and, to some extent, the OPC UA clients) allows an attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service by stack overflow vulnerability.

CVE Details : NIST ID CVE-2018-12086

CVSS Information

CVSS v3 Base Score: 7.5 / 10

CVSS v3 Base Vector: NLNN | U | NNH

     

Available fix and Supported packages

  • PLANTCONNECT | 15.0 | 15.0
  • PLANTCONNECT | 15.1 | 15.1
  • PLANTCONNECT | 15.2 | 15.2
  • PLANT CONNECTIVITY 15.0 | SP006 | 000011
  • PLANT CONNECTIVITY 15.0 | SP007 | 000000
  • PLANT CONNECTIVITY 15.1 | SP006 | 000008
  • PLANT CONNECTIVITY 15.1 | SP007 | 000000
  • PLANT CONNECTIVITY 15.2 | SP002 | 000000

Affected component

    MFG-PCO
    SAP Plant Connectivity

CVSS

Score: 0

Exploit

Detailed vulnerability information added to RedRays Security Platform. Contact [email protected] for details.

URL

https://launchpad.support.sap.com/#/notes/2674215

TAGS

#&65279-DoS
#DDoS
#Distributed-Denial-of-Service
#Uncontrolled-Resource-consumption
#Resource-Exhaustion
#&160-XXE
#XML
#Stack-Overflow
#&160-NIST-ID-CVE-2018-12585
#NIST-ID-CVE-2018-12086

More to explorer

SAP Cloud Connector Certificate Validation Issue

Date of Release: February 13, 2024 Advisory ID: CVE-2024-25642 Affected Software: SAP Cloud Connector Versions Affected: 2.15.0 to 2.16.1 Vulnerability Summary:A critical vulnerability,