{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-26731", "assignerOrgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "assignerShortName": "Nozomi", "dateUpdated": "2022-12-01T00:00:00", "dateReserved": "2021-02-05T00:00:00", "datePublished": "2022-10-24T00:00:00"}, "containers": {"cna": {"title": "spx_restservice modifyUserb_func Command Injection and Multiple Stack-Based Buffer Overflows", "providerMetadata": {"orgId": "bec8025f-a851-46e5-b3a3-058e6b0aa23c", "shortName": "Nozomi", "dateUpdated": "2022-12-01T00:00:00"}, "descriptions": [{"lang": "en", "value": "Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_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."}], "affected": [{"vendor": "Lanner Inc", "product": "IAC-AST2500A", "versions": [{"version": "1.10.0", "status": "affected"}]}], "references": [{"url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/"}, {"url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26731/"}], "credits": [{"lang": "en", "value": "Andrea Palanca of Nozomi Networks found this bug during a security research activity."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-94 Improper Control of Generation of Code ('Code Injection')", "cweId": "CWE-94"}]}, {"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-121 Stack-based Buffer Overflow", "cweId": "CWE-121"}]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "source": {"advisory": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26731/", "discovery": "EXTERNAL"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:lannerinc:iac-ast2500a_firmware:1.10.0:*:*:*:*:*:*:*", "matchCriteriaId": "8DD71184-078B-4B7E-BCB5-11E55B5928B7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:lannerinc:iac-ast2500a:-:*:*:*:*:*:*:*", "matchCriteriaId": "9007683B-45DA-471A-9CCB-A587DED8D973", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "Command injection and multiple stack-based buffer overflows vulnerabilities in the modifyUserb_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": "Unas vulnerabilidades de inyecci\u00f3n de comandos y de desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria en la funci\u00f3n modifyUserb_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"}], "id": "CVE-2021-26731", "lastModified": "2023-02-03T15:08:45.870", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 6.0, "source": "prodsec@nozominetworks.com", "type": "Secondary"}]}, "published": "2022-10-24T14:15:48.300", "references": [{"source": "prodsec@nozominetworks.com", "tags": ["Third Party Advisory"], "url": "https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/"}, {"source": "prodsec@nozominetworks.com", "tags": ["Third Party Advisory"], "url": "https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26731/"}], "sourceIdentifier": "prodsec@nozominetworks.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-77"}, {"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-121"}, {"lang": "en", "value": "CWE-94"}], "source": "prodsec@nozominetworks.com", "type": "Secondary"}]}

{}