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Rewterz Threat Advisory – Multiple Juniper Networks Junos OS on EX Series and SRX Series Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2023-36847 CVSS:5.3

Juniper Networks Junos OS on EX Series could allow a remote attacker to upload arbitrary files, caused by the improper validation of file extensions. By sending a specially crafted HTTP request, a remote attacker could exploit this vulnerability to upload a malicious file, which could allow the attacker to execute arbitrary code on the vulnerable system.

CVE-2023-36846 CVSS:5.3

Juniper Networks Junos OS on SRX Series could allow a remote attacker to upload arbitrary files, caused by the improper validation of file extensions. By sending a specially crafted HTTP request, a remote attacker could exploit this vulnerability to upload a malicious file, which could allow the attacker to execute arbitrary code on the vulnerable system.

CVE-2023-36845 CVSS:5.3

Juniper Networks Junos OS on EX Series and SRX Series could allow a remote attacker to bypass security restrictions, caused by a PHP external variable modification flaw in J-Web. By sending a specially crafted request, an attacker could exploit this vulnerability to modify certain PHP environments variables.

CVE-2023-36844 CVSS:5.3

Juniper Networks Junos OS on EX Series could allow a remote attacker to bypass security restrictions, caused by a PHP external variable modification flaw in J-Web. By sending a specially crafted request, an attacker could exploit this vulnerability to modify certain PHP environments variables.

Impact

  • Gain Access
  • Security Bypass

Indicators Of Compromise

CVE

  • CVE-2023-36847
  • CVE-2023-36846
  • CVE-2023-36845
  • CVE-2023-36844

Affected Vendors

Juniper

Affected Products

  • Juniper Networks EX Series
  • Juniper Networks Junos OS 21.2
  • Juniper Networks Junos OS 21.3
  • Juniper Networks Junos OS 21.4

Remediation

Refer to Juniper Networks Security Bulletin for patch, upgrade or suggested workaround information.

Juniper Networks Security Bulletin