VDB-117123 · CVE-2018-8833 · BID 103972

Advantech WebAccess HMI Designer 2.1.7.32 pm3 File memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Advantech WebAccess HMI Designer 2.1.7.32. The affected element is an unknown function of the component pm3 File Handler. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2018-8833. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Advantech WebAccess HMI Designer 2.1.7.32 (SCADA Software). It has been classified as critical. This affects some unknown processing of the component pm3 File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Heap-based buffer overflow vulnerabilities in Advantech WebAccess HMI Designer 2.1.7.32 and prior caused by processing specially crafted .pm3 files may allow remote code execution.

The bug was discovered 04/20/2018. The weakness was presented 04/25/2018 by Steven Seeley with Zero Day Initiative (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2018-8833 since 03/20/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 5 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 103972†). See VDB-117124 and VDB-117125 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/20/2018 🔍
04/20/2018 +31 days 🔍
04/24/2018 +4 days 🔍
04/25/2018 +0 days 🔍
04/25/2018 +0 days 🔍
04/26/2018 +1 days 🔍
01/31/2020 +645 days 🔍

Sourcesinfo

Vendor: advantech.com

Advisory: securityfocus.com⛔
Researcher: Steven Seeley
Organization: Zero Day Initiative
Status: Not defined

CVE: CVE-2018-8833 (🔍)
GCVE (CVE): GCVE-0-2018-8833
GCVE (VulDB): GCVE-100-117123
SecurityFocus: 103972 - Advantech WebAccess HMI Designer Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 04/26/2018 10:20
Updated: 01/31/2020 17:47
Changes: 04/26/2018 10:20 (60), 01/31/2020 17:47 (5)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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