CVE-2020-26728

A vulnerability was discovered in Tenda AC9 v3.0 V15.03.06.42_multi and Tenda AC9 V1.0 V15.03.05.19(6318)_CN which allows for remote code execution via shell metacharacters in the guestuser field to the __fastcall function with a POST request.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/Lyc-heng/Router/blob/main/Tenda/rce1.md	Broken Link
https://github.com/Lyc-heng/routers/blob/a80b30bccfc9b76f3a4868ff28ad5ce2e0fca180/routers/rce1.md	Exploit Third Party Advisory
https://github.com/Lyc-heng/routers/blob/main/routers/rce1.md	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:ac9_firmware:15.03.06.42_multi:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac9:3.0:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:tenda:ac9_firmware:15.03.05.19\(6318\)_cn:*:*:*:*:*:*:*

cpe:2.3:h:tenda:ac9:1.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-02-11 19:15

Updated : 2024-02-28 19:09

NVD link : CVE-2020-26728

Mitre link : CVE-2020-26728

CVE.ORG link : CVE-2020-26728

JSON object : View

Products Affected

tenda

ac9
ac9_firmware

CWE

NVD-CWE-noinfo

{"id": "CVE-2020-26728", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2022-02-11T19:15:08.027", "references": [{"url": "https://github.com/Lyc-heng/Router/blob/main/Tenda/rce1.md", "tags": ["Broken Link"], "source": "cve@mitre.org"}, {"url": "https://github.com/Lyc-heng/routers/blob/a80b30bccfc9b76f3a4868ff28ad5ce2e0fca180/routers/rce1.md", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/Lyc-heng/routers/blob/main/routers/rce1.md", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability was discovered in Tenda AC9 v3.0 V15.03.06.42_multi and Tenda AC9 V1.0 V15.03.05.19(6318)_CN which allows for remote code execution via shell metacharacters in the guestuser field to the __fastcall function with a POST request."}, {"lang": "es", "value": "Se ha detectado una vulnerabilidad en Tenda AC9 versi\u00f3n v3.0 V15.03.06.42_multi y Tenda AC9 versi\u00f3n V1.0 V15.03.05.19(6318)_CN que permite una ejecuci\u00f3n de c\u00f3digo remota por medio de metacaracteres de shell en el campo guestuser a la funci\u00f3n __fastcall con una petici\u00f3n POST"}], "lastModified": "2022-02-22T18:03:21.923", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tenda:ac9_firmware:15.03.06.42_multi:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7AE11228-D2BB-48CF-BFDA-E2AA73E73C3C"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tenda:ac9:3.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7F482F89-B0F6-450D-B675-43EC0A9E6A4B"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tenda:ac9_firmware:15.03.05.19\\(6318\\)_cn:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D433B9D2-8F7E-45B7-99EF-50E96B14B324"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tenda:ac9:1.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "566DA530-18FC-4A46-95B4-2A7D343A96A7"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}