CVE-2021-27770

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430", "name": "https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430", "tags": ["Vendor Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The vulnerability was discovered within the \u201cFaviconService\u201d. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the \u201cmeetings\u201d-function where users can specify an external URL where the online meeting will take place."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-668"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-27770", "ASSIGNER": "psirt@hcl.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}}, "publishedDate": "2022-05-12T22:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:hcltech:sametime:11.6:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-05-24T18:47Z"}