title: cSRX: Use of Hard-coded Cryptographic Keys allows an attacker to take control of the device through device management services.
description: 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.
problem types: CWE-321 Use of Hard-coded Cryptographic Keys
affected:
{
platforms: cSRX Series
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 20.2R3, status: affected, version: unspecified, versionType: custom
lessThan: 20.3R2, status: affected, version: 20.3, versionType: custom
lessThan: 20.4R2, status: affected, version: 20.4, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.1
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
exploits: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
solutions: The following software releases have been updated to resolve this specific issue: 20.2R3, 20.3R2, 20.4R2, 21.1R1, and all subsequent releases.
workarounds: 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.