CVE-2021-26727

Multiple command injections and stack-based buffer overflows vulnerabilities in the SubNet_handler_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.

CVSS v3 10.0 CRITICAL

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
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-2021-26727/	Third Party Advisory
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-2021-26727/	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*

cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:56

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~9.8~~	v2 : unknown v3 : 10.0
References	~~() https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/ - Third Party Advisory~~	() https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/ - Third Party Advisory
References	~~() https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26727/ - Third Party Advisory~~	() https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26727/ - Third Party Advisory

Information

Published : 2022-10-24 14:15

Updated : 2024-11-21 05:56

NVD link : CVE-2021-26727

Mitre link : CVE-2021-26727

CVE.ORG link : CVE-2021-26727

JSON object : View

Products Affected

lannerinc

iac-ast2500a_firmware
iac-ast2500a

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-121

Stack-based Buffer Overflow

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

CWE-787

Out-of-bounds Write

{"id": "CVE-2021-26727", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "prodsec@nozominetworks.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 10.0, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2022-10-24T14:15:48.037", "references": [{"url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/", "tags": ["Third Party Advisory"], "source": "prodsec@nozominetworks.com"}, {"url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26727/", "tags": ["Third Party Advisory"], "source": "prodsec@nozominetworks.com"}, {"url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26727/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "prodsec@nozominetworks.com", "description": [{"lang": "en", "value": "CWE-94"}, {"lang": "en", "value": "CWE-121"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-77"}, {"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "Multiple command injections and stack-based buffer overflows vulnerabilities in the SubNet_handler_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."}, {"lang": "es", "value": "M\u00faltiples inyecciones de comandos y los desbordamientos de b\u00fafer en la regi\u00f3n stack de la memoria en la funci\u00f3n SubNet_handler_func de spx_restservice permiten a un atacante ejecutar c\u00f3digo arbitrario con los mismos privilegios que el usuario del servidor (root). Este problema afecta: Lanner Inc IAC-AST2500A versi\u00f3n de firmware est\u00e1ndar 1.10.0"}], "lastModified": "2024-11-21T05:56:45.600", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8DD71184-078B-4B7E-BCB5-11E55B5928B7"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9007683B-45DA-471A-9CCB-A587DED8D973"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "prodsec@nozominetworks.com"}