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CVE-2023-36851 is a missing authentication for a critical function in Juniper Networks Junos OS on SRX Series devices. The flaw is in the J-Web management interface, where requests to a J-Web operation endpoint are not properly protected by authentication. As a result, an unauthenticated network attacker can interact with the exposed functionality to upload and download arbitrary files through J-Web. The vulnerability affects multiple Junos OS release trains on SRX Series, including 21.2 before 21.2R3-S8, 21.4 before 21.4R3-S6, 22.1 before 22.1R3-S5, 22.2 before 22.2R3-S3, 22.3 before 22.3R3-S2, 22.4 before 22.4R2-S2 and 22.4R3, and 23.2 before 23.2R1-S2 and 23.2R2. The direct security consequence is unauthorized file transfer against the device, causing limited file system integrity impact and potential confidentiality loss, and it may be chained with other vulnerabilities for more severe outcomes.
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A missing authentication vulnerability in Juniper Networks Junos OS, exploited as part of a chain for RCE.
Juniper Junos OS J-Webの複数脆弱性の1つで、SRXシリーズおよびEXシリーズに影響し、組み合わせにより認証前リモートコード実行を可能にする脆弱性群の一部として言及されている。
Missing authentication in Juniper SRX Junos OS J-Web (webauth_operation.php) enabling unauthenticated arbitrary file upload/download, impacting integrity/confidentiality and potentially chainable to other vulnerabilities.
An edge device vulnerability included in the report's sampled set of CISA KEV-listed vulnerabilities used to analyze remediation and exploitation trends.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.