Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA deadline 2023-11-17 · passed 2 years 9 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Juniper Junos OS on EX Series and SRX Series contains a PHP external variable modification vulnerability that allows an unauthenticated, network-based attacker to control an important environment variable. Using a crafted request, which sets the variable PHPRC, an attacker is able to modify the PHP execution environment allowing the injection und execution of code.
Who is affected
Juniper Junos OS. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-473.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 2 years 9 months ago
Sources
- NVD entry for CVE-2023-36845 nvd.nist.gov/vuln/detail/CVE-2023-36845
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- supportportal.juniper.net 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
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2023-36845