2 lines
3.7 KiB
JSON
2 lines
3.7 KiB
JSON
{"affected":[{"affectedData":[{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThan":"92","status":"affected","version":"unspecified","versionType":"custom"}]}],"source":"security@mozilla.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*","matchCriteriaId":"117CF1EF-253C-4D02-96C4-EA184FC46C3A","versionEndExcluding":"92.0","vulnerable":true}],"negate":false,"operator":"OR"},{"cpeMatch":[{"criteria":"cpe:2.3:o:google:android:-:*:*:*:*:*:*:*","matchCriteriaId":"F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26","vulnerable":false}],"negate":false,"operator":"OR"}],"operator":"AND"}],"cveTags":[],"descriptions":[{"lang":"en","value":"If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This could lead to user confusion and spoofing attacks. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*<br>*Note*: Due to a clerical error this advisory was not included in the original announcement, and was added in Feburary 2022. This vulnerability affects Firefox < 92."},{"lang":"es","value":"Si un nombre de dominio contuviera un carácter RTL, el dominio se representaría a la derecha de la ruta. Esto podría generar confusión en el usuario y ataques de suplantación de identidad. <br>*Este error sólo afecta a Firefox para Android. Otros sistemas operativos no se ven afectados.*<br>*Nota*: Debido a un error administrativo, este aviso no se incluyó en el anuncio original y se agregó en febrero de 2022. Esta vulnerabilidad afecta a Firefox < 92."}],"id":"CVE-2021-4221","lastModified":"2026-06-17T04:19:14.537","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"exploitabilityScore":2.8,"impactScore":1.4,"source":"nvd@nist.gov","type":"Primary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"exploitabilityScore":2.8,"impactScore":1.4,"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2021-4221","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-04-16T15:48:58.282021Z","version":"2.0.3"}}]},"published":"2022-12-22T20:15:12.337","references":[{"source":"security@mozilla.org","tags":["Exploit","Issue Tracking","Vendor Advisory"],"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1704422"},{"source":"security@mozilla.org","tags":["Vendor Advisory"],"url":"https://www.mozilla.org/security/advisories/mfsa2021-38/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Issue Tracking","Vendor Advisory"],"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1704422"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://www.mozilla.org/security/advisories/mfsa2021-38/"}],"sourceIdentifier":"security@mozilla.org","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"NVD-CWE-Other"}],"source":"nvd@nist.gov","type":"Primary"},{"description":[{"lang":"en","value":"CWE-1007"}],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}]}
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