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ID

VAR-202005-1242


TITLE

Advantech WebAccess/SCADA DATACORE IOCTL 0x521B Heap-based Buffer Overflow Remote Code Execution Vulnerability

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sources: ZDI: ZDI-20-611

DESCRIPTION

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Advantech WebAccess/SCADA. Authentication is not required to exploit this vulnerability.The specific flaw exists within the processing of IOCTL 0x521B in datacore.exe. The issue results from the lack of proper validation of user-supplied data, which can trigger an overflow of a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator.

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sources: ZDI: ZDI-20-611

AFFECTED PRODUCTS

vendor:advantechmodel:webaccess/scadascope: - version: -

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sources: ZDI: ZDI-20-611

CVSS

SEVERITY

CVSSV2

CVSSV3

ZDI: ZDI-20-611
value: CRITICAL

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ZDI: ZDI-20-611
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.0

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sources: ZDI: ZDI-20-611

PATCH

title:Advantech has issued an update to correct this vulnerability.url:https://www.us-cert.gov/ics/advisories/icsa-20-128-36

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sources: ZDI: ZDI-20-611

EXTERNAL IDS

db:ZDI_CANid:ZDI-CAN-9947

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db:ZDIid:ZDI-20-611

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sources: ZDI: ZDI-20-611

REFERENCES

url:https://www.us-cert.gov/ics/advisories/icsa-20-128-36

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sources: ZDI: ZDI-20-611

CREDITS

Z0mb1E

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sources: ZDI: ZDI-20-611

SOURCES

db:ZDIid:ZDI-20-611

LAST UPDATE DATE

2022-05-17T01:45:05.751000+00:00


SOURCES UPDATE DATE

db:ZDIid:ZDI-20-611date:2020-05-08T00:00:00

SOURCES RELEASE DATE

db:ZDIid:ZDI-20-611date:2020-05-08T00:00:00