{"id": "CVE-2021-28840", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-08-10T18:15:07.220", "references": [{"url": "https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.dlink.com/en/security-bulletin/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve2.pdf", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.dlink.com/en/security-bulletin/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de Desreferencia de Puntero Null en D-Link DAP-2310 versi\u00f3n 2.07.RC031, DAP-2330 versi\u00f3n 1.07.RC028, DAP-2360 versi\u00f3n 2.07.RC043, DAP-2553 versi\u00f3n 3.06.RC027, DAP-2660 versi\u00f3n 1. 13.RC074, DAP-2690 versi\u00f3n 3.16.RC100, DAP-2695 versi\u00f3n 1.17.RC063, DAP-3320 versi\u00f3n 1.01.RC014 y DAP-3662 versi\u00f3n 1.01.RC022, en la funci\u00f3n upload_config del binario sbin/httpd. Cuando el binario maneja la petici\u00f3n HTTP GET espec\u00edfica, el contenido en la variable upload_file es NULL en la funci\u00f3n upload_config entonces el strncasecmp tomar\u00eda NULL como primer argumento, e incurrir\u00eda en la vulnerabilidad de Desreferencia de Puntero Null"}], "lastModified": "2024-11-21T06:00:18.510", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-2310_firmware:2.0.7.rc031:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6BBA6F0B-083F-4772-AF62-9976FDA9B0AE"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-2310:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8C5F3D97-3CFE-41B9-9C8B-832445EA92B0"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-2330_firmware:1.07.rc028:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6F69902B-ADBD-4B97-9BA2-3C198FD5B2AB"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-2330:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9ABC8839-D62A-4AAB-A9D2-AFE95CBB9B17"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-2360_firmware:2.07.rc043:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7B1E1F6E-BB52-4F5B-B2FC-9AFEA8039971"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-2360:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E7AE9A88-AD97-41A5-9847-4282788EBB1E"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-2553_firmware:3.06.rc027:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B0C8C853-352D-44EF-A311-BB1DDBB5401E"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-2553:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "20BA9382-B0D4-4E7C-A198-067AA65AB190"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-2660_firmware:1.13.rc074:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AA764CAB-2165-4E54-87B2-4011FEF1BE89"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-2660:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "41EFE653-296E-4E37-9DCC-BAF99C4AD2F3"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-2690_firmware:3.16.rc100:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "290596AB-F094-4AAF-B974-435960328E26"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-2690:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "3B827A81-49A8-4AFD-943A-3F359615E49D"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-2695_firmware:1.17.rc063:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9DE9E559-D849-4330-823A-649E7E335BD8"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-2695:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9039DA66-D624-4590-B236-101B775C5956"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-3320_firmware:1.01.rc014:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BE90DE31-9674-4E8A-8B37-B168ED18762D"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-3320:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "95D03B33-E8D6-4ED3-AED3-8FBDE80C74CB"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dap-3662_firmware:1.01.rc022:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D51CFA61-E9F8-4D18-87C5-17A502235807"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dap-3662:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "07645866-3B61-46AB-85C6-ED86F1B0D47F"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}
