VDB-130568 · CVE-2019-6521 · BID 106722

Advantech WebAccess SCADA 8.3 Request improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Advantech WebAccess SCADA 8.3 and classified as critical. This impacts an unknown function. Such manipulation as part of Request leads to improper authentication. This vulnerability is listed as CVE-2019-6521. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Advantech WebAccess SCADA 8.3 (SCADA Software) and classified as critical. Affected by this issue is an unknown code. The manipulation as part of a Request leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

WebAccess/SCADA, Version 8.3. Specially crafted requests could allow a possible authentication bypass that could allow an attacker to obtain and manipulate sensitive information.

The bug was discovered 01/24/2019. The weakness was presented 02/05/2019 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2019-6521 since 01/22/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 12 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13407 (Advantech WebAccess Multiple Security Vulnerabilities).

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 106722†). See VDB-130567 and VDB-130569 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/22/2019 🔍
01/24/2019 +2 days 🔍
01/24/2019 +0 days 🔍
02/05/2019 +12 days 🔍
02/06/2019 +1 days 🔍
05/08/2020 +457 days 🔍

Sourcesinfo

Vendor: advantech.com

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2019-6521 (🔍)
GCVE (CVE): GCVE-0-2019-6521
GCVE (VulDB): GCVE-100-130568
SecurityFocus: 106722 - Advantech WebAccess/SCADA Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 02/06/2019 13:55
Updated: 05/08/2020 16:14
Changes: 02/06/2019 13:55 (61), 05/08/2020 16:14 (4)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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