CVE-2021-26728
spx_restservice KillDupUsr_func Command Injection and Stack-Based Buffer Overflow
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Command injection and stack-based buffer overflow vulnerabilities in the KillDupUsr_func function of spx_restservice allow an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
Unas vulnerabilidades de inyección de comandos y desbordamiento del búfer en la región stack de la memoria en la función KillDupUsr_func de spx_restservice permiten a un atacante ejecutar código arbitrario con los mismos privilegios que el usuario del servidor (root). Este problema afecta a: Lanner Inc IAC-AST2500A versión de firmware estándar 1.10.0
*Credits:
Andrea Palanca of Nozomi Networks found this bug during a security research activity.
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-02-05 CVE Reserved
- 2022-10-24 CVE Published
- 2024-05-16 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
- CWE-94: Improper Control of Generation of Code ('Code Injection')
- CWE-121: Stack-based Buffer Overflow
- CWE-787: Out-of-bounds Write
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1 | Third Party Advisory | |
| https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26728 | Third Party Advisory |
| URL | Date | SRC |
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| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Lannerinc Search vendor "Lannerinc" | Iac-ast2500a Firmware Search vendor "Lannerinc" for product "Iac-ast2500a Firmware" | 1.10.0 Search vendor "Lannerinc" for product "Iac-ast2500a Firmware" and version "1.10.0" | - |
Affected
| in | Lannerinc Search vendor "Lannerinc" | Iac-ast2500a Search vendor "Lannerinc" for product "Iac-ast2500a" | - | - |
Safe
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