CVE-2020-12002
Advantech WebAccess/SCADA BwBacNetJ Stack-based Buffer Overflow Remote Code Execution Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. Multiple stack-based buffer overflow vulnerabilities exist caused by a lack of proper validation of the length of user-supplied data, which may allow remote code execution.
Advantech WebAccess Node, versiones 8.4.4 y anteriores, versión 9.0.0. Se presentan múltiples vulnerabilidades de desbordamiento del búfer en la región stack de la memoria causada por una falta de comprobación apropiada de la longitud de los datos suministrados por el usuario, que puede permitir una ejecución de código remota.
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 BwBacNetJ driver. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-04-21 CVE Reserved
- 2020-05-08 CVE Published
- 2024-08-04 CVE Updated
- 2024-11-04 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-121: Stack-based Buffer Overflow
- CWE-787: Out-of-bounds Write
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| https://www.us-cert.gov/ics/advisories/icsa-20-128-01 | Third Party Advisory | |
| https://www.zerodayinitiative.com/advisories/ZDI-20-590 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-20-591 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-20-592 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-20-619 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-20-622 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-20-624 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-20-625 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-20-633 | Third Party Advisory |
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| https://www.zerodayinitiative.com/advisories/ZDI-20-634 | Third Party Advisory |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Advantech Search vendor "Advantech" | Webaccess Search vendor "Advantech" for product "Webaccess" | <= 8.4.4 Search vendor "Advantech" for product "Webaccess" and version " <= 8.4.4" | - |
Affected
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| Advantech Search vendor "Advantech" | Webaccess Search vendor "Advantech" for product "Webaccess" | 9.0.0 Search vendor "Advantech" for product "Webaccess" and version "9.0.0" | - |
Affected
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