var-202103-0938
Vulnerability from variot
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400 and R6700 firmware version 1.0.4.98 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the upnpd service, which listens on UDP port 1900 by default. A crafted MX header field in an SSDP message can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11851. NETGEAR R6400 and R6700 A stack-based buffer overflow vulnerability exists in the firmware. Zero Day Initiative To this vulnerability ZDI-CAN-11851 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: "r6400", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.1.68", }, { _id: null, model: "wndr3400", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.1.38", }, { _id: null, model: "rbr750", scope: "lt", trust: 1, vendor: "netgear", version: "3.2.17.12", }, { _id: null, model: "rs400", scope: "lte", trust: 1, vendor: "netgear", version: "1.5.0.68", }, { _id: null, model: "r6250", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.4.48", }, { _id: null, model: "r8000", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.4.68", }, { _id: null, model: "rbr850", scope: "lt", trust: 1, vendor: "netgear", version: "3.2.17.12", }, { _id: null, model: "r7850", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.5.68", }, { _id: null, model: "rax80", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.3.102", }, { _id: null, model: "r7100lg", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.0.64", }, { _id: null, model: "r7960p", scope: "lt", trust: 1, vendor: "netgear", version: "1.4.1.68", }, { _id: null, model: "r6400", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.4.102", }, { _id: null, model: "d7000", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.0.66", }, { _id: null, model: "d8500", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.3.60", }, { _id: null, model: "d6400", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.0.102", }, { _id: null, model: "dc112a", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.0.54", }, { _id: null, model: "r8000p", scope: "lt", trust: 1, vendor: "netgear", version: "1.4.1.68", }, { _id: null, model: "r6700", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.4.102", }, { _id: null, model: "r7000p", scope: "lt", trust: 1, vendor: "netgear", version: "1.3.2.132", }, { _id: null, model: "r8300", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.2.144", }, { _id: null, model: "rbs40v", scope: "lt", trust: 1, vendor: "netgear", version: "2.6.2.4", }, { _id: null, model: "wnr3500l", scope: "lt", trust: 1, vendor: "netgear", version: "1.2.0.66", }, { _id: null, model: "xr300", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.3.56", }, { _id: null, model: "r6300", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.4.50", }, { _id: null, model: "r7000", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.11.116", }, { _id: null, model: "rbs850", scope: "lt", trust: 1, vendor: "netgear", version: "3.2.17.12", }, { _id: null, model: "ex7000", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.1.94", }, { _id: null, model: "r7900p", scope: "lt", trust: 1, vendor: "netgear", version: "1.4.1.68", }, { _id: null, model: "rax75", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.3.102", }, { _id: null, model: "rbs750", scope: "lt", trust: 1, vendor: "netgear", version: "3.2.17.12", }, { _id: null, model: "r8500", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.2.144", }, { _id: null, model: "ex7500", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.0.72", }, { _id: null, model: "rax200", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.2.88", }, { _id: null, model: "d6220", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.0.68", }, { _id: null, model: "r6900p", scope: "lt", trust: 1, vendor: "netgear", version: "1.3.2.132", }, { _id: null, model: "r7900", scope: "lt", trust: 1, vendor: "netgear", version: "1.0.4.38", }, { _id: null, model: "ex7000", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "d6200", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "d6400", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "r6700", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "r6400", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "d8500", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "r6250", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "ex7500", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "dc112a", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "d7000", scope: null, trust: 0.8, vendor: "ネットギア", version: null, }, { _id: null, model: "multiple routers", scope: null, trust: 0.7, vendor: "netgear", version: null, }, ], sources: [ { db: "ZDI", id: "ZDI-21-206", }, { db: "JVNDB", id: "JVNDB-2021-005006", }, { db: "NVD", id: "CVE-2021-27239", }, ], }, credits: { _id: null, data: "Anonymous", sources: [ { db: "ZDI", id: "ZDI-21-206", }, ], trust: 0.7, }, cve: "CVE-2021-27239", 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-2021-27239", impactScore: 10, integrityImpact: "COMPLETE", severity: "HIGH", trust: 1.9, 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-2021-27239", 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-2021-27239", impactScore: 5.9, integrityImpact: "HIGH", privilegesRequired: "NONE", scope: "UNCHANGED", trust: 1, 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, baseSeverity: "HIGH", confidentialityImpact: "HIGH", exploitabilityScore: 2.8, id: "CVE-2021-27239", impactScore: 5.9, integrityImpact: "HIGH", privilegesRequired: "NONE", scope: "UNCHANGED", trust: 0.7, userInteraction: "NONE", vectorString: "AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", version: "3.0", }, ], severity: [ { author: "nvd@nist.gov", id: "CVE-2021-27239", trust: 1, value: "HIGH", }, { author: "zdi-disclosures@trendmicro.com", id: "CVE-2021-27239", trust: 1, value: "HIGH", }, { author: "NVD", id: "CVE-2021-27239", trust: 0.8, value: "High", }, { author: "ZDI", id: "CVE-2021-27239", trust: 0.7, value: "HIGH", }, { author: "CNNVD", id: "CNNVD-202103-1618", trust: 0.6, value: "HIGH", }, { author: "VULMON", id: "CVE-2021-27239", trust: 0.1, value: "HIGH", }, ], }, ], sources: [ { db: "ZDI", id: "ZDI-21-206", }, { db: "VULMON", id: "CVE-2021-27239", }, { db: "JVNDB", id: "JVNDB-2021-005006", }, { db: "CNNVD", id: "CNNVD-202103-1618", }, { db: "NVD", id: "CVE-2021-27239", }, { db: "NVD", id: "CVE-2021-27239", }, ], }, description: { _id: null, data: "This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400 and R6700 firmware version 1.0.4.98 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the upnpd service, which listens on UDP port 1900 by default. A crafted MX header field in an SSDP message can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11851. NETGEAR R6400 and R6700 A stack-based buffer overflow vulnerability exists in the firmware. Zero Day Initiative To this vulnerability ZDI-CAN-11851 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-2021-27239", }, { db: "JVNDB", id: "JVNDB-2021-005006", }, { db: "ZDI", id: "ZDI-21-206", }, { db: "VULMON", id: "CVE-2021-27239", }, ], trust: 2.34, }, external_ids: { _id: null, data: [ { db: "NVD", id: "CVE-2021-27239", trust: 3.2, }, { db: "ZDI", id: "ZDI-21-206", trust: 3.2, }, { db: "JVNDB", id: "JVNDB-2021-005006", trust: 0.8, }, { db: "ZDI_CAN", id: "ZDI-CAN-11851", trust: 0.7, }, { db: "CNNVD", id: "CNNVD-202103-1618", trust: 0.6, }, { db: "VULMON", id: "CVE-2021-27239", trust: 0.1, }, ], sources: [ { db: "ZDI", id: "ZDI-21-206", }, { db: "VULMON", id: "CVE-2021-27239", }, { db: "JVNDB", id: "JVNDB-2021-005006", }, { db: "CNNVD", id: "CNNVD-202103-1618", }, { db: "NVD", id: "CVE-2021-27239", }, ], }, id: "VAR-202103-0938", iot: { _id: null, data: true, sources: [ { db: "VARIoT devices database", id: null, }, ], trust: 0.3599811042857142, }, last_update_date: "2024-11-23T22:37:03.359000Z", patch: { _id: null, data: [ { title: "Security Advisory for Stack-based Buffer Overflow Remote Code Execution Vulnerability on Some Routers, PSV-2020-0432", trust: 1.5, url: "https://kb.netgear.com/000062820/Security-Advisory-for-Stack-based-Buffer-Overflow-Remote-Code-Execution-Vulnerability-on-Some-Routers-PSV-2020-0432", }, { title: "Netgear NETGEAR R6400 and NETGEAR R6700 Security vulnerabilities", trust: 0.6, url: "http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=146570", }, { title: "", trust: 0.1, url: "https://github.com/WizardsOfTheInternet/CVE-2021-27239 ", }, ], sources: [ { db: "ZDI", id: "ZDI-21-206", }, { db: "VULMON", id: "CVE-2021-27239", }, { db: "JVNDB", id: "JVNDB-2021-005006", }, { db: "CNNVD", id: "CNNVD-202103-1618", }, ], }, problemtype_data: { _id: null, data: [ { problemtype: "CWE-121", trust: 1, }, { problemtype: "Stack-based buffer overflow (CWE-121) [ Other ]", trust: 0.8, }, ], sources: [ { db: "JVNDB", id: "JVNDB-2021-005006", }, { db: "NVD", id: "CVE-2021-27239", }, ], }, references: { _id: null, data: [ { trust: 2.6, url: "https://www.zerodayinitiative.com/advisories/zdi-21-206/", }, { trust: 2.4, url: "https://kb.netgear.com/000062820/security-advisory-for-stack-based-buffer-overflow-remote-code-execution-vulnerability-on-some-routers-psv-2020-0432", }, { trust: 1.4, url: "https://nvd.nist.gov/vuln/detail/cve-2021-27239", }, { trust: 0.1, url: "https://cwe.mitre.org/data/definitions/121.html", }, { trust: 0.1, url: "https://github.com/wizardsoftheinternet/cve-2021-27239", }, { trust: 0.1, url: "https://nvd.nist.gov", }, ], sources: [ { db: "ZDI", id: "ZDI-21-206", }, { db: "VULMON", id: "CVE-2021-27239", }, { db: "JVNDB", id: "JVNDB-2021-005006", }, { db: "CNNVD", id: "CNNVD-202103-1618", }, { db: "NVD", id: "CVE-2021-27239", }, ], }, sources: { _id: null, data: [ { db: "ZDI", id: "ZDI-21-206", ident: null, }, { db: "VULMON", id: "CVE-2021-27239", ident: null, }, { db: "JVNDB", id: "JVNDB-2021-005006", ident: null, }, { db: "CNNVD", id: "CNNVD-202103-1618", ident: null, }, { db: "NVD", id: "CVE-2021-27239", ident: null, }, ], }, sources_release_date: { _id: null, data: [ { date: "2021-02-24T00:00:00", db: "ZDI", id: "ZDI-21-206", ident: null, }, { date: "2021-03-29T00:00:00", db: "VULMON", id: "CVE-2021-27239", ident: null, }, { date: "2021-12-06T00:00:00", db: "JVNDB", id: "JVNDB-2021-005006", ident: null, }, { date: "2021-03-29T00:00:00", db: "CNNVD", id: "CNNVD-202103-1618", ident: null, }, { date: "2021-03-29T21:15:12.377000", db: "NVD", id: "CVE-2021-27239", ident: null, }, ], }, sources_update_date: { _id: null, data: [ { date: "2021-02-24T00:00:00", db: "ZDI", id: "ZDI-21-206", ident: null, }, { date: "2021-04-02T00:00:00", db: "VULMON", id: "CVE-2021-27239", ident: null, }, { date: "2021-12-06T05:23:00", db: "JVNDB", id: "JVNDB-2021-005006", ident: null, }, { date: "2021-08-16T00:00:00", db: "CNNVD", id: "CNNVD-202103-1618", ident: null, }, { date: "2024-11-21T05:57:39.813000", db: "NVD", id: "CVE-2021-27239", ident: null, }, ], }, threat_type: { _id: null, data: "remote or local", sources: [ { db: "CNNVD", id: "CNNVD-202103-1618", }, ], trust: 0.6, }, title: { _id: null, data: "NETGEAR R6400 and R6700 Stack-based buffer overflow vulnerability in firmware", sources: [ { db: "JVNDB", id: "JVNDB-2021-005006", }, ], trust: 0.8, }, type: { _id: null, data: "other", sources: [ { db: "CNNVD", id: "CNNVD-202103-1618", }, ], trust: 0.6, }, }
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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.
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- 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.