CVE-2021-27413
Omron CX-One CX-Position NCI File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Omron CX-One Versions 4.60 and prior, including CX-Server Versions 5.0.29.0 and prior, are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute arbitrary code.
Las versiones 4.60 y anteriores de Omron CX-One, incluidas las versiones 5.0.29.0 y anteriores de CX-Server, son vulnerables a un desbordamiento del búfer basado en la pila, que puede permitir a un atacante ejecutar código arbitrario
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Omron CX-One. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of NCI files in the CX-Position application. When parsing the B_PLC_NAME element, the process does not properly validate 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 the current process.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-02-19 CVE Reserved
- 2021-05-13 CVE Published
- 2024-08-03 CVE Updated
- 2024-11-20 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 (2)
| URL | Tag | Source |
|---|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-131-01 | Third Party Advisory | |
| https://www.zerodayinitiative.com/advisories/ZDI-21-588 | 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 |
| Omron Search vendor "Omron" | Cx-one Search vendor "Omron" for product "Cx-one" | <= 4.60 Search vendor "Omron" for product "Cx-one" and version " <= 4.60" | - |
Affected
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| Omron Search vendor "Omron" | Cx-server Search vendor "Omron" for product "Cx-server" | <= 5.0.29 Search vendor "Omron" for product "Cx-server" and version " <= 5.0.29" | - |
Affected
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