Advantech WebAccess/SCADA 9.0.1 Services access control

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k0.00

A vulnerability has been found in Advantech WebAccess and SCADA 9.0.1 (SCADA Software) and classified as critical. This vulnerability affects an unknown functionality of the component Services Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-284. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An exploitable local privilege elevation vulnerability exists in the file system permissions of Advantech WebAccess/SCADA 9.0.1 installation. In privilege escalation via multiple service executables in installation folder of WebAccess, an attacker can either replace binary or loaded modules to execute code with NT SYSTEM privilege.

The weakness was disclosed 02/18/2021 as TALOS-2020-1169. The advisory is available at talosintelligence.com. This vulnerability was named CVE-2020-13552 since 05/26/2020. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation needs a single authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/03/2021). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

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

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VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

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VulDB Base Score: 🔒
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VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-284
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat: 🔍
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Countermeasuresinfoedit

Recommended: no mitigation known
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0-Day Time: 🔒

Timelineinfoedit

05/26/2020 CVE assigned
02/18/2021 +268 days Advisory disclosed
02/18/2021 +0 days VulDB entry created
03/03/2021 +13 days VulDB last update

Sourcesinfoedit

Vendor: https://www.advantech.com/

Advisory: TALOS-2020-1169
Status: Not defined

CVE: CVE-2020-13552 (🔒)

Entryinfoedit

Created: 02/18/2021 07:34 AM
Updated: 03/03/2021 08:36 AM
Changes: (16) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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