{"cvss":0.0,"datePublished":"2023-11-13","dateUpdated":"2023-11-13","description":"Juniper Junos OS on SRX Series contains a missing authentication for critical function vulnerability that allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to webauth_operation.php that doesn't require authentication, an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain part of the file system, which may allow chaining to other vulnerabilities.","dueDate":"2023-11-17","id":"CVE-2023-36851","kev_catalogs":["cisa"],"knownRansomwareCampaignUse":"Unknown","notes":"https://supportportal.juniper.net/s/article/2023-08-Out-of-Cycle-Security-Bulletin-Junos-OS-SRX-Series-and-EX-Series-Multiple-vulnerabilities-in-J-Web-can-be-combined-to-allow-a-preAuth-Remote-Code-Execution?language=en_US ;  https://nvd.nist.gov/vuln/detail/CVE-2023-36851","product":"Junos OS","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","severity":"HIGH","source":"cisa_known_exploited","title":"Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability","vendor":"Juniper"}