CVE-2020-7881

The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by "FanTicket" field. It is because of stored data without validation of length.

CVSS v3 7.5 HIGH
CVSS v2.0 6.5 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

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://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357	Third Party Advisory
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:afreecatv:afreecatv:1.0.0.1:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:37

Type	Values Removed	Values Added
CVSS	v2 : ~~6.5~~ v3 : ~~8.8~~	v2 : 6.5 v3 : 7.5
References	~~() https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357 - Third Party Advisory~~	() https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357 - Third Party Advisory

Information

Published : 2021-11-26 17:15

Updated : 2024-11-21 05:37

NVD link : CVE-2020-7881

Mitre link : CVE-2020-7881

CVE.ORG link : CVE-2020-7881

JSON object : View

Products Affected

afreecatv

afreecatv

microsoft

windows

CWE

CWE-190

Integer Overflow or Wraparound

CWE-787

Out-of-bounds Write

{"id": "CVE-2020-7881", "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": "Secondary", "source": "vuln@krcert.or.kr", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.6}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2021-11-26T17:15:07.560", "references": [{"url": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357", "tags": ["Third Party Advisory"], "source": "vuln@krcert.or.kr"}, {"url": "https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36357", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "vuln@krcert.or.kr", "description": [{"lang": "en", "value": "CWE-190"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "The vulnerability function is enabled when the streamer service related to the AfreecaTV communicated through web socket using 21201 port. A stack-based buffer overflow leading to remote code execution was discovered in strcpy() operate by \"FanTicket\" field. It is because of stored data without validation of length."}, {"lang": "es", "value": "La funci\u00f3n de la vulnerabilidad es habilitada cuando el servicio de streaming relacionado con AfreecaTV se comunica mediante el socket web usando el puerto 21201. Se ha detectado un desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria, conllevando a una ejecuci\u00f3n de c\u00f3digo remota en la funci\u00f3n strcpy() operada por el campo \"FanTicket\". Es debido a que los datos almacenados no comprueban su longitud"}], "lastModified": "2024-11-21T05:37:58.257", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:afreecatv:afreecatv:1.0.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CB62437F-0B23-4C73-AF11-E3A76DE6F570"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "vuln@krcert.or.kr"}