Vulnerability-Lookup

VAR-202110-0997

Vulnerability from variot - Updated: 2023-12-18 13:01

Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code. Advantech WebAccess Exists in an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. Authentication is not required to exploit this vulnerability.The specific flaw exists within the handling of IOCTL 0x2722. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator. Advantech WebAccess is a set of browser-based HMI/SCADA software from Advantech.

A heap buffer overflow vulnerability exists in Advantech WebAccess 9.02 and earlier. The software supports dynamic graphic display and real-time data control, and provides functions of remote control and management of automation equipment

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CVE-2021-33023 (GCVE-0-2021-33023)

Vulnerability from cvelistv5 – Published: 2021-10-18 12:41 – Updated: 2024-09-17 03:49

Title

Advantech WebAccess

Summary

Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-122 - HEAP-BASED BUFFER OVERFLOW CWE-122

Assigner

icscert

References

URL

Tags

https://us-cert.cisa.gov/ics/advisories/icsa-21-285-02

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Advantech	WebAccess	Affected: All , ≤ 9.02 (custom)

Credits

Natnael Samson, @NattiSamson, working with Trend Micro’s Zero Day Initiative, reported these vulnerabilities to CISA.

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202110-0997

CVE-2021-33023 (GCVE-0-2021-33023)

Tags

Sightings

Nomenclature