CVE-2021-27114

An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/addassignment route, a very long text entry for the"'s_ip" and "s_mac" fields could lead to a Stack-Based Buffer Overflow and overwrite the return address.

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/GD008/vuln/blob/main/DIR-816_stackoverflow.md	Exploit Third Party Advisory
https://www.dlink.com/en/security-bulletin/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:dir-816_firmware:1.10b05:*:*:*:*:*:*:*

cpe:2.3:h:dlink:dir-816:a2:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-04-14 14:15

Updated : 2024-02-04 21:47

NVD link : CVE-2021-27114

Mitre link : CVE-2021-27114

CVE.ORG link : CVE-2021-27114

JSON object : View

Products Affected

dlink

dir-816_firmware
dir-816

CWE

CWE-787

Out-of-bounds Write

{"id": "CVE-2021-27114", "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": "2021-04-14T14:15:13.647", "references": [{"url": "https://github.com/GD008/vuln/blob/main/DIR-816_stackoverflow.md", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.dlink.com/en/security-bulletin/", "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": "An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/addassignment route, a very long text entry for the\"'s_ip\" and \"s_mac\" fields could lead to a Stack-Based Buffer Overflow and overwrite the return address."}, {"lang": "es", "value": "Se detect\u00f3 un problema en los dispositivos D-Link DIR-816 A2 versi\u00f3n 1.10 B05. Dentro de la funci\u00f3n handler de la ruta /goform/addassignment, una entrada de texto muy larga para los campos \"'s_ip\" y \"s_mac\" podr\u00eda conllevar a un desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria y sobrescribir la direcci\u00f3n de retorno"}], "lastModified": "2021-04-20T21:47:35.490", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:dir-816_firmware:1.10b05:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B12CE36E-C7F7-4FE7-BA46-8EC5B61F617E"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:dir-816:a2:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "1A3AC507-7219-401E-AC60-12D96382E4B7"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}