var-202104-1038
Vulnerability from variot
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the vendor_specific DHCP opcode. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12216. NETGEAR R7800 For firmware, OS A command injection vulnerability exists. Zero Day Initiative To this vulnerability ZDI-CAN-12216 Was numbered.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state
Show details on source website{ "affected_products": { "_id": null, "data": [ { "_id": null, "model": "rbk53", "scope": "lt", "trust": 1.0, "vendor": "netgear", "version": "2.7.2.104" }, { "_id": null, "model": "r9000", "scope": "lt", "trust": 1.0, "vendor": "netgear", "version": "1.0.5.28" }, { "_id": null, "model": "ex6250", "scope": "lt", "trust": 1.0, "vendor": "netgear", "version": "1.0.0.134" }, { "_id": null, "model": "r7800", "scope": "lt", "trust": 1.0, "vendor": "netgear", "version": "1.0.2.80" }, { "_id": null, "model": "rbr20", "scope": "lt", "trust": 1.0, "vendor": "netgear", "version": "2.6.2.104" }, { "_id": null, "model": "r8900", "scope": "lt", "trust": 1.0, "vendor": "netgear", "version": "1.0.5.28" }, { "_id": null, "model": "rbk20", "scope": "lt", "trust": 1.0, "vendor": "netgear", "version": "2.6.2.104" }, { "_id": null, "model": "rbk40", "scope": "lt", "trust": 1.0, "vendor": "netgear", "version": "2.6.2.104" }, { "_id": null, "model": "ex6400", "scope": "lt", 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"vendor": "\u30cd\u30c3\u30c8\u30ae\u30a2", "version": null }, { "_id": null, "model": "r7800", "scope": null, "trust": 0.7, "vendor": "netgear", "version": null } ], "sources": [ { "db": "ZDI", "id": "ZDI-21-248" }, { "db": "JVNDB", "id": "JVNDB-2021-006382" }, { "db": "NVD", "id": "CVE-2021-27252" } ] }, "credits": { "_id": null, "data": "atdog (@atdog_tw)", "sources": [ { "db": "ZDI", "id": "ZDI-21-248" } ], "trust": 0.7 }, "cve": "CVE-2021-27252", "cvss": { "_id": null, "data": [ { "cvssV2": [ { "accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "author": "nvd@nist.gov", "availabilityImpact": "COMPLETE", "baseScore": 8.3, "confidentialityImpact": "COMPLETE", "exploitabilityScore": 6.5, "id": "CVE-2021-27252", "impactScore": 10.0, "integrityImpact": "COMPLETE", "severity": "HIGH", "trust": 1.8, "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0" } ], "cvssV3": [ { "attackComplexity": "LOW", "attackVector": "ADJACENT", "author": "zdi-disclosures@trendmicro.com", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "exploitabilityScore": 2.8, "id": "CVE-2021-27252", "impactScore": 5.9, "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "trust": 1.8, "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0" }, { "attackComplexity": "LOW", "attackVector": "ADJACENT", "author": "nvd@nist.gov", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "exploitabilityScore": 2.8, "id": "CVE-2021-27252", "impactScore": 5.9, "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "trust": 1.0, "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, { "attackComplexity": "LOW", "attackVector": "ADJACENT", "author": "ZDI", "availabilityImpact": "HIGH", "baseScore": 8.8, 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"description": { "_id": null, "data": "This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 firmware version 1.0.2.76. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the vendor_specific DHCP opcode. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12216. NETGEAR R7800 For firmware, OS A command injection vulnerability exists. Zero Day Initiative To this vulnerability ZDI-CAN-12216 Was numbered.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state", "sources": [ { "db": "NVD", "id": "CVE-2021-27252" }, { "db": "JVNDB", "id": "JVNDB-2021-006382" }, { "db": "ZDI", "id": "ZDI-21-248" }, { "db": "VULMON", "id": "CVE-2021-27252" } ], "trust": 2.34 }, "external_ids": { "_id": null, "data": [ { "db": "NVD", "id": "CVE-2021-27252", "trust": 4.0 }, { "db": "ZDI", "id": "ZDI-21-248", "trust": 3.2 }, { "db": "JVNDB", "id": "JVNDB-2021-006382", "trust": 0.8 }, { "db": "ZDI_CAN", "id": "ZDI-CAN-12216", "trust": 0.7 }, { "db": "CNNVD", "id": "CNNVD-202104-1073", "trust": 0.6 }, { "db": "VULMON", "id": "CVE-2021-27252", "trust": 0.1 } ], "sources": [ { "db": "ZDI", "id": "ZDI-21-248" }, { "db": "VULMON", "id": "CVE-2021-27252" }, { "db": "JVNDB", "id": "JVNDB-2021-006382" }, { "db": "CNNVD", "id": "CNNVD-202104-1073" }, { "db": "NVD", "id": "CVE-2021-27252" } ] }, "id": "VAR-202104-1038", "iot": { "_id": null, "data": true, "sources": [ { "db": "VARIoT devices database", "id": null } ], "trust": 0.25201656722222227 }, "last_update_date": "2024-11-23T22:47:39.525000Z", "patch": { "_id": null, "data": [ { "title": "Security\u00a0Advisory\u00a0for\u00a0Multiple\u00a0Vulnerabilities\u00a0on\u00a0Some\u00a0Routers,\u00a0Satellites,\u00a0and\u00a0Extenders", "trust": 1.5, "url": "https://kb.netgear.com/000062883/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Satellites-and-Extenders" }, { "title": "Netgear NETGEAR R7800 Fixes for operating system command injection vulnerabilities", "trust": 0.6, "url": "http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=147594" } ], "sources": [ { "db": "ZDI", "id": "ZDI-21-248" }, { "db": "JVNDB", "id": "JVNDB-2021-006382" }, { "db": "CNNVD", "id": "CNNVD-202104-1073" } ] }, "problemtype_data": { "_id": null, "data": [ { "problemtype": "CWE-78", "trust": 1.0 }, { "problemtype": "OS Command injection (CWE-78) [ Other ]", "trust": 0.8 } ], "sources": [ { "db": "JVNDB", "id": "JVNDB-2021-006382" }, { "db": "NVD", "id": "CVE-2021-27252" } ] }, "references": { "_id": null, "data": [ { "trust": 2.6, "url": "https://www.zerodayinitiative.com/advisories/zdi-21-248/" }, { "trust": 2.4, "url": "https://kb.netgear.com/000062883/security-advisory-for-multiple-vulnerabilities-on-some-routers-satellites-and-extenders" }, { "trust": 1.4, "url": "https://nvd.nist.gov/vuln/detail/cve-2021-27252" }, { "trust": 0.1, "url": "https://cwe.mitre.org/data/definitions/78.html" }, { "trust": 0.1, "url": "https://nvd.nist.gov" } ], "sources": [ { "db": "ZDI", "id": "ZDI-21-248" }, { "db": "VULMON", "id": "CVE-2021-27252" }, { "db": "JVNDB", "id": "JVNDB-2021-006382" }, { "db": "CNNVD", "id": "CNNVD-202104-1073" }, { "db": "NVD", "id": "CVE-2021-27252" } ] }, "sources": { "_id": null, "data": [ { "db": "ZDI", "id": "ZDI-21-248", "ident": null }, { "db": "VULMON", "id": "CVE-2021-27252", "ident": null }, { "db": "JVNDB", "id": "JVNDB-2021-006382", "ident": null }, { "db": "CNNVD", "id": "CNNVD-202104-1073", "ident": null }, { "db": "NVD", "id": "CVE-2021-27252", "ident": null } ] }, "sources_release_date": { "_id": null, "data": [ { "date": "2021-02-24T00:00:00", "db": "ZDI", "id": "ZDI-21-248", "ident": null }, { "date": "2021-04-14T00:00:00", "db": "VULMON", "id": "CVE-2021-27252", "ident": null }, { "date": "2022-01-06T00:00:00", "db": "JVNDB", "id": "JVNDB-2021-006382", "ident": null }, { "date": "2021-04-14T00:00:00", "db": "CNNVD", "id": "CNNVD-202104-1073", "ident": null }, { "date": "2021-04-14T16:15:13.737000", "db": "NVD", "id": "CVE-2021-27252", "ident": null } ] }, "sources_update_date": { "_id": null, "data": [ { "date": "2021-02-24T00:00:00", "db": "ZDI", "id": "ZDI-21-248", "ident": null }, { "date": "2021-04-27T00:00:00", "db": "VULMON", "id": "CVE-2021-27252", "ident": null }, { "date": "2022-01-06T05:00:00", "db": "JVNDB", "id": "JVNDB-2021-006382", "ident": null }, { "date": "2021-04-28T00:00:00", "db": "CNNVD", "id": "CNNVD-202104-1073", "ident": null }, { "date": "2024-11-21T05:57:41.453000", "db": "NVD", "id": "CVE-2021-27252", "ident": null } ] }, "threat_type": { "_id": null, "data": "remote or local", "sources": [ { "db": "CNNVD", "id": "CNNVD-202104-1073" } ], "trust": 0.6 }, "title": { "_id": null, "data": "NETGEAR\u00a0R7800\u00a0 In firmware \u00a0OS\u00a0 Command injection vulnerability", "sources": [ { "db": "JVNDB", "id": "JVNDB-2021-006382" } ], "trust": 0.8 }, "type": { "_id": null, "data": "operating system commend injection", "sources": [ { "db": "CNNVD", "id": "CNNVD-202104-1073" } ], "trust": 0.6 } }
Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.