CVE-2021-0266

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.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: 20.2R3, 20.3R2, 20.4R2, 21.1R1, and all subsequent releases.

Workaround:

  • 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.

Categories

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.42%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA11157 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-0266?
CVE-2021-0266 has been scored as a high severity vulnerability.
How to fix CVE-2021-0266?
To fix CVE-2021-0266: The following software releases have been updated to resolve this specific issue: 20.2R3, 20.3R2, 20.4R2, 21.1R1, and all subsequent releases.
Is CVE-2021-0266 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-0266 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-0266?
CVE-2021-0266 affects Juniper Networks Junos OS.
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