A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to control certain, important environment variables. Using a crafted request an attacker is able to modify certain PHP environment variables leading to partial loss of integrity, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on EX Series: * All versions prior to 20.4R3-S9; * 21.1 versi
A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to control certain, important environment variables.
Using a crafted request an attacker is able to modify
certain PHP environment variables leading to partial loss of integrity, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on EX Series:
prior to
21.3R3-S5;
prior to
21.4R3-S5;
prior to
22.1R3-S4;
prior to
22.2R3-S2;
prior to 22.3R3-S1;
prior to
22.4R2-S2, 22.4R3;
23.2R1-S1, 23.2R2.
Why this VPI (explainable, experimental)
VPI breakdown
| Impact | 53.00 |
| Exploitation signal(KEV listed) | ×1.50 |
| VPI | 79.50 |
VPI formula vpi-v1
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.