The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.
The following software releases have been updated to resolve this specific issue: 20.2R3, 20.3R2, 20.4R2, 21.1R1, and all subsequent releases.
There are no viable workarounds for this issue. To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to the cSRX instance to only trusted administrative networks, hosts and users.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS | >=unspecified<20.2R3 | 20.2R3 | advisory ↗ |
| Juniper Networks Junos OS | >=20.3<20.3R2 | 20.3R2 | advisory ↗ |
| Juniper Networks Junos OS | >=20.4<20.4R2 | 20.4R2 | advisory ↗ |