{"id":"CVE-2024-21620","state":"PUBLISHED","title":"Junos OS: SRX Series and EX Series: J-Web doesn't sufficiently sanitize input to prevent XSS","description":"An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an attacker to construct a URL that when visited by another user enables the attacker to execute commands with the target's permissions, including an administrator.\n\nA specific invocation of the emit_debug_note method in webauth_operation.php will echo back the data it receives.\n\nThis issue affects Juniper Networks Junos OS on SRX Series and EX Series:\n  *  All versions earlier than 20.4R3-S10;\n  *  21.2 versions earlier than 21.2R3-S8;\n  *  21.4 versions earlier than 21.4R3-S6;\n  *  22.1 versions earlier than 22.1R3-S5;\n  *  22.2 versions earlier than 22.2R3-S3;\n  *  22.3 versions earlier than 22.3R3-S2;\n  *  22.4 versions earlier than 22.4R3-S1;\n  *  23.2 versions earlier than 23.2R2;\n  *  23.4 versions earlier than 23.4R2.\n\n\n","publishedAt":"2024-01-25T22:50:18.164Z","updatedAt":"2025-05-29T15:18:51.087Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"20.4R3-S10","versionType":"semver"},{"version":"21.2","status":"affected","lessThan":"21.2R3-S8","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S6","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S5","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S3","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S2","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S1","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2","versionType":"semver"}],"platforms":["SRX Series","EX Series"]}],"references":["https://supportportal.juniper.net/JSA76390"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:06:59.846Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/21xxx/CVE-2024-21620.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-21620","state":"PUBLISHED","datePublished":"2024-01-25T22:50:18.164Z","dateUpdated":"2025-05-29T15:18:51.087Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2023-12-27T19:38:25.710Z"},"containers":{"cna":{"title":"Junos OS: SRX Series and EX Series: J-Web doesn't sufficiently sanitize input to prevent XSS","descriptions":[{"lang":"en","value":"An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an attacker to construct a URL that when visited by another user enables the attacker to execute commands with the target's permissions, including an administrator.\n\nA specific invocation of the emit_debug_note method in webauth_operation.php will echo back the data it receives.\n\nThis issue affects Juniper Networks Junos OS on SRX Series and EX Series:\n  *  All versions earlier than 20.4R3-S10;\n  *  21.2 versions earlier than 21.2R3-S8;\n  *  21.4 versions earlier than 21.4R3-S6;\n  *  22.1 versions earlier than 22.1R3-S5;\n  *  22.2 versions earlier than 22.2R3-S3;\n  *  22.3 versions earlier than 22.3R3-S2;\n  *  22.4 versions earlier than 22.4R3-S1;\n  *  23.2 versions earlier than 23.2R2;\n  *  23.4 versions earlier than 23.4R2.\n\n\n"}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"20.4R3-S10","versionType":"semver"},{"version":"21.2","status":"affected","lessThan":"21.2R3-S8","versionType":"semver"},{"version":"21.4","status":"affected","lessThan":"21.4R3-S6","versionType":"semver"},{"version":"22.1","status":"affected","lessThan":"22.1R3-S5","versionType":"semver"},{"version":"22.2","status":"affected","lessThan":"22.2R3-S3","versionType":"semver"},{"version":"22.3","status":"affected","lessThan":"22.3R3-S2","versionType":"semver"},{"version":"22.4","status":"affected","lessThan":"22.4R3-S1","versionType":"semver"},{"version":"23.2","status":"affected","lessThan":"23.2R2","versionType":"semver"},{"version":"23.4","status":"affected","lessThan":"23.4R2","versionType":"semver"}],"platforms":["SRX Series","EX Series"]}],"references":[{"url":"https://supportportal.juniper.net/JSA76390","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2024-01-25T22:51:36.390Z"},"credits":[{"lang":"en","type":"finder","value":"The Juniper SIRT would like to acknowledge and thank watchtowr for responsibly reporting this vulnerability."}],"datePublic":"2024-01-25T17:00:00.000Z","exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Juniper SIRT is not aware of any malicious exploitation of this vulnerability.</p>"}],"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n\n"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>The following software releases have been updated to resolve this specific issue: 20.4R3-S10*, 21.2R3-S8*, 21.4R3-S6*, 22.1R3-S5*, 22.2R3-S3*, 22.3R3-S2*, 22.4R3-S1*, 23.2R2*, 23.4R2*, 24.2R1*, and all subsequent releases.</p><p>* Pending Publication</p>"}],"value":"The following software releases have been updated to resolve this specific issue: 20.4R3-S10*, 21.2R3-S8*, 21.4R3-S6*, 22.1R3-S5*, 22.2R3-S3*, 22.3R3-S2*, 22.4R3-S1*, 23.2R2*, 23.4R2*, 24.2R1*, and all subsequent releases.\n\n* Pending Publication\n\n"}],"source":{"defect":["1779376"],"discovery":"EXTERNAL"},"timeline":[{"lang":"en","time":"2024-01-25T17:00:00.000Z","value":"Initial Publication"}],"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Disable J-Web, or limit access to only trusted hosts and users.</p>"}],"value":"Disable J-Web, or limit access to only trusted hosts and users.\n\n"}],"x_generator":{"engine":"Vulnogram 0.1.0-av217"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://supportportal.juniper.net/JSA76390","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-01T22:27:35.367Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-05-08T15:46:41.881429Z","id":"CVE-2024-21620","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-05-29T15:18:51.087Z"}}]}}}