CVE-2018-21171

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.

CVSS v3 6.8 MEDIUM
CVSS v2.0 5.2 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

5.2^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 5.1 / Impact : 6.4

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://kb.netgear.com/000055187/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2632	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:netgear:d6100_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:netgear:d6100:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-04-27 18:15

Updated : 2024-02-28 17:47

NVD link : CVE-2018-21171

Mitre link : CVE-2018-21171

CVE.ORG link : CVE-2018-21171

JSON object : View

Products Affected

netgear

r7800_firmware
wndr3700_firmware
r9000_firmware
wndr4300
r7800
wndr4300_firmware
d6100
d6100_firmware
wndr3700
r9000

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2018-21171", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.2, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 5.1, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "cve@mitre.org", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 6.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.9}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.9}]}, "published": "2020-04-27T18:15:12.920", "references": [{"url": "https://kb.netgear.com/000055187/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2632", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98."}, {"lang": "es", "value": "Determinados dispositivos NETGEAR est\u00e1n afectados por un desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria por parte de un usuario autenticado. Esto afecta a D6100 versiones anteriores a 1.0.0.57, R7800 versiones anteriores a 1.0.2.40, R9000 versiones anteriores a 1.0.3.6, WNDR3700v4 versiones anteriores a 1.0.2.92 y WNDR4300 versiones anteriores a 1.0.2.98."}], "lastModified": "2020-05-01T18:24:15.877", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A2E62164-2324-4AF2-B300-8005DAD433B6", "versionEndExcluding": "1.0.2.40"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "17CF7445-6950-45FE-9D1A-E23F63316329"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1664969-D326-4EC5-BF0D-E43820CCB378", "versionEndExcluding": "1.0.2.40"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D74F1BFC-562E-4E7D-BBAB-2F8B593B5A57"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netgear:d6100_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2ECEA129-164C-4C80-A81E-9688F4AC3583", "versionEndExcluding": "1.0.0.57"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netgear:d6100:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7EFD1E86-F100-4E46-935D-903EB6FEFE9D"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90A3C8B6-51A9-49BC-8C82-01269519B652", "versionEndExcluding": "1.0.2.92"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "257A5E68-8EDC-44F5-A85C-83A91C93CCE5"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EF96C0EB-8CB6-4C86-A9A2-A4C7AF58C97F", "versionEndExcluding": "1.0.2.98"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "1413C591-D066-4FA2-BEB1-6C60F8645F28"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}