{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-4105", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "state": "PUBLISHED", "assignerShortName": "TR-CERT", "dateReserved": "2021-12-13T12:15:35.293Z", "datePublished": "2023-02-24T11:09:46.710Z", "dateUpdated": "2026-05-18T12:08:00.909Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-05-18T12:08:00.909Z"}, "title": "Unauthenticated Remote Code Execution on COSLAT Firewall", "datePublic": "2023-02-24T11:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-755", "description": "CWE-755 Improper Handling of Exceptional Conditions", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-253", "descriptions": [{"lang": "en", "value": "CAPEC-253 Remote Code Inclusion"}]}], "affected": [{"vendor": "BG-TEK", "product": "COSLAT Firewall", "versions": [{"status": "affected", "version": "5.24.0.r.20180630", "lessThan": "5.24.0.r.20210727", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion.\n\nThis issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion.<p>This issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727.</p>"}]}], "references": [{"url": "http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.html", "tags": ["vendor-advisory"]}, {"url": "https://www.usom.gov.tr/bildirim/tr-23-0108", "tags": ["government-resource", "broken-link"]}, {"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0108", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}}], "solutions": [{"lang": "en", "value": "Update the version to >=\n\n5.24.0.r.20210727", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Update the version to &gt;=\n\n5.24.0.r.20210727"}]}], "timeline": [{"time": "2021-07-26T21:00:00.000Z", "lang": "en", "value": "Vendor patched the vulnerability."}], "source": {"defect": ["TR-23-0108"], "advisory": "TR-23-0108", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:16:04.180Z"}, "title": "CVE Program Container", "references": [{"tags": ["vendor-advisory", "x_transferred"], "url": "http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.html"}, {"tags": ["government-resource", "x_transferred"], "url": "https://www.usom.gov.tr/bildirim/tr-23-0108"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-03-11T15:46:22.107439Z", "id": "CVE-2021-4105", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-11T15:46:27.196Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.html", "tags": ["vendor-advisory", "x_transferred"]}, {"url": "https://www.usom.gov.tr/bildirim/tr-23-0108", "tags": ["government-resource", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:16:04.180Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-4105", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-03-11T15:46:22.107439Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-03-11T15:46:03.236Z"}}], "cna": {"title": "Unauthenticated Remote Code Execution on COSLAT Firewall", "source": {"defect": ["TR-23-0108"], "advisory": "TR-23-0108", "discovery": "UNKNOWN"}, "impacts": [{"capecId": "CAPEC-253", "descriptions": [{"lang": "en", "value": "CAPEC-253 Remote Code Inclusion"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"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"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "BG-TEK", "product": "COSLAT Firewall", "versions": [{"status": "affected", "version": "5.24.0.r.20180630", "lessThan": "5.24.0.r.20210727", "versionType": "custom"}], "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2021-07-26T21:00:00.000Z", "value": "Vendor patched the vulnerability."}], "solutions": [{"lang": "en", "value": "Update the version to >=\n\n5.24.0.r.20210727", "supportingMedia": [{"type": "text/html", "value": "Update the version to &gt;=\n\n5.24.0.r.20210727", "base64": false}]}], "datePublic": "2023-02-24T11:00:00.000Z", "references": [{"url": "http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.html", "tags": ["vendor-advisory"]}, {"url": "https://www.usom.gov.tr/bildirim/tr-23-0108", "tags": ["government-resource", "broken-link"]}, {"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0108", "tags": ["government-resource"]}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}, "descriptions": [{"lang": "en", "value": "Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion.\n\nThis issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727.", "supportingMedia": [{"type": "text/html", "value": "Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion.<p>This issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-755", "description": "CWE-755 Improper Handling of Exceptional Conditions"}]}], "providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-05-18T12:08:00.909Z"}}}, "cveMetadata": {"cveId": "CVE-2021-4105", "state": "PUBLISHED", "dateUpdated": "2026-05-18T12:08:00.909Z", "dateReserved": "2021-12-13T12:15:35.293Z", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "datePublished": "2023-02-24T11:09:46.710Z", "assignerShortName": "TR-CERT"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:bg-tek:coslat_bx5s1d3_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "C839CDB1-D5E8-4F19-82C8-CE6629118278", "versionEndExcluding": "5.24.0.r.20210727", "versionStartIncluding": "5.24.0.r.20180630", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:bg-tek:coslat_bx5s1d3:-:*:*:*:*:*:*:*", "matchCriteriaId": "2850DC15-4B6F-4E79-B028-9FD2CF455078", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:bg-tek:coslat_bx5s1d4_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "DDA8A01B-9A69-420A-A128-7E4FA316940D", "versionEndExcluding": "5.24.0.r.20210727", "versionStartIncluding": "5.24.0.r.20180630", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:bg-tek:coslat_bx5s1d4:-:*:*:*:*:*:*:*", "matchCriteriaId": "2F47FA7F-7151-4372-AB77-B5D30A008757", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:bg-tek:coslat_bx5s1d5_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "C655BF89-788B-4353-93CB-2D73EE6B0E91", "versionEndExcluding": "5.24.0.r.20210727", "versionStartIncluding": "5.24.0.r.20180630", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:bg-tek:coslat_bx5s1d5:-:*:*:*:*:*:*:*", "matchCriteriaId": "78099EBC-BFBE-4A6B-A97F-9EAF26E611A7", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:bg-tek:coslat_rm1ds1000_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "806727A2-456B-4A12-9CD2-354358309892", "versionEndExcluding": "5.24.0.r.20210727", "versionStartIncluding": "5.24.0.r.20180630", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:bg-tek:coslat_rm1ds1000:-:*:*:*:*:*:*:*", "matchCriteriaId": "BD474143-126B-4097-8B4A-66DF562ACADB", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:bg-tek:coslat_rm2ds2000_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "2014519C-53FB-4429-B8EB-3E2F13735567", "versionEndExcluding": "5.24.0.r.20210727", "versionStartIncluding": "5.24.0.r.20180630", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:bg-tek:coslat_rm2ds2000:-:*:*:*:*:*:*:*", "matchCriteriaId": "5566AD59-5CCA-41B1-8B30-3BD70EDEFB9F", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:bg-tek:coslat_rm2s200_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "41162D57-35D5-42CA-A8BE-833785A3C6D7", "versionEndExcluding": "5.24.0.r.20210727", "versionStartIncluding": "5.24.0.r.20180630", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:bg-tek:coslat_rm2s200:-:*:*:*:*:*:*:*", "matchCriteriaId": "9FD17E3F-7692-45B5-B87A-7B8783413A95", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:bg-tek:coslat_rm3s300_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "FD855956-B215-4104-86C8-9E5768F48B53", "versionEndExcluding": "5.24.0.r.20210727", "versionStartIncluding": "5.24.0.r.20180630", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:bg-tek:coslat_rm3s300:-:*:*:*:*:*:*:*", "matchCriteriaId": "6987EFB5-6CBB-423D-A660-7EBAB2BE0E24", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:bg-tek:coslat_rm4s500_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "CB92D173-E495-443B-915B-D5060A80BB47", "versionEndExcluding": "5.24.0.r.20210727", "versionStartIncluding": "5.24.0.r.20180630", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:bg-tek:coslat_rm4s500:-:*:*:*:*:*:*:*", "matchCriteriaId": "9EA26FE5-27A7-48D5-83A2-F972F0EC9975", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion.\n\nThis issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727."}], "id": "CVE-2021-4105", "lastModified": "2026-05-18T13:16:31.913", "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": "iletisim@usom.gov.tr", "type": "Secondary"}, {"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"}]}, "published": "2023-02-24T12:15:30.127", "references": [{"source": "iletisim@usom.gov.tr", "tags": ["Vendor Advisory"], "url": "http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.html"}, {"source": "iletisim@usom.gov.tr", "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0108"}, {"source": "iletisim@usom.gov.tr", "tags": ["Third Party Advisory"], "url": "https://www.usom.gov.tr/bildirim/tr-23-0108"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.usom.gov.tr/bildirim/tr-23-0108"}], "sourceIdentifier": "iletisim@usom.gov.tr", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-755"}], "source": "iletisim@usom.gov.tr", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}