CVE-2023-36847: Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files

1. In CISA KEVCISA KEV catalogue13 Nov 2023
2. Exploited (reported): not seen
3. Scanning observed: not seen
4. Proof of concept public: not seen
5. Not established: not seen

DescriptionCVE.org

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to installAppPackage.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 EX 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-S4; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S1; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2-S1, 22.4R3.

• Juniper Networks · Junos OSbefore 20.4R3-S8; from 21.1 before 21.1*; from 21.2 before 21.2R3-S6; from 21.3 before 21.3R3-S5; from 21.4 before 21.4R3-S4; from 22.1 before 22.1R3-S3 and 3 more

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalogue.

CISA KEV

Listed since 13 Nov 2023 · catalogue entry

Public check

No public nuclei template

Weakness

Missing Authentication · Authentication

Vendor

Juniper Networks

Published

August 2023

Band

Exploited in the wild, August 2023

1. 13 Nov 2023
   CISA added it to the KEV catalogue CISA

• NVD entrynvd.nist.gov
• CISA KEV cataloguecisa.gov
• CVE recordcve.org
• Weakness CWE-306cwe.mitre.org
• Vendor advisorysupportportal.juniper.net