CVE-2021-33023
Advantech WebAccess
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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 versiones 9.02 y anteriores, son vulnerables a un desbordamiento del búfer en la región heap de la memoria, que puede permitir a un atacante ejecutar código de forma remota
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Advantech WebAccess. 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.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-05-13 CVE Reserved
- 2021-10-18 CVE Published
- 2024-08-20 EPSS Updated
- 2024-09-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-122: Heap-based Buffer Overflow
- CWE-787: Out-of-bounds Write
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://us-cert.cisa.gov/ics/advisories/icsa-21-285-02 | Mitigation |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
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" | <= 9.0.2 Search vendor "Advantech" for product "Webaccess" and version " <= 9.0.2" | - |
Affected
| ||||||