CVE-2020-20746

A stack-based buffer overflow in the httpd server on Tenda AC9 V15.03.06.60_EN allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via a crafted POST request to /goform/SetStaticRouteCfg.

CVSS v3 7.2 HIGH
CVSS v2.0 6.5 MEDIUM

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://cwe.mitre.org/data/definitions/121.html	Technical Description
https://github.com/grapefruitvul/vulinfo/blob/master/tenda/vul1.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tendacn:ac9_firmware:15.03.06.60_en:*:*:*:*:*:*:*

cpe:2.3:h:tendacn:ac9:3.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-09-30 21:15

Updated : 2024-02-28 18:48

NVD link : CVE-2020-20746

Mitre link : CVE-2020-20746

CVE.ORG link : CVE-2020-20746

JSON object : View

Products Affected

tendacn

ac9_firmware
ac9

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2020-20746", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/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": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/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": 1.2}]}, "published": "2021-09-30T21:15:07.960", "references": [{"url": "https://cwe.mitre.org/data/definitions/121.html", "tags": ["Technical Description"], "source": "cve@mitre.org"}, {"url": "https://github.com/grapefruitvul/vulinfo/blob/master/tenda/vul1.md", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "A stack-based buffer overflow in the httpd server on Tenda AC9 V15.03.06.60_EN allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via a crafted POST request to /goform/SetStaticRouteCfg."}, {"lang": "es", "value": "Un desbordamiento de b\u00fafer en la regi\u00f3n stack de la memoria en el servidor httpd en Tenda AC9 versi\u00f3n V15.03.06.60_ES, permite a atacantes remotos ejecutar c\u00f3digo arbitrario o causar una denegaci\u00f3n de servicio (DoS) por medio de una petici\u00f3n POST dise\u00f1ada a /goform/SetStaticRouteCfg"}], "lastModified": "2022-09-14T20:33:58.687", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tendacn:ac9_firmware:15.03.06.60_en:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90D4EF6F-3B6B-47F4-9093-FE81634DE235"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tendacn:ac9:3.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "CA49FEFD-41B5-4038-883D-989AB85D6CF5"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}