CVE-2023-36846

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity.



With a specific request to user.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.


This issue affects Juniper Networks Junos OS on SRX Series:



  *  All versions prior to 20.4R3-S8;
  *  21.1 versions 21.1R1 and later;
  *  21.2 versions prior to 21.2R3-S6;
  *  21.3 versions 

prior to 

 21.3R3-S5;
  *  21.4 versions 

prior to 

21.4R3-S5;
  *  22.1 versions 

prior to 

22.1R3-S3;
  *  22.2 versions 

prior to 

22.2R3-S2;
  *  22.3 versions 

prior to 

22.3R2-S2, 22.3R3;
  *  22.4 versions 

prior to 

22.4R2-S1, 22.4R3.