CVE-2021-0248

NFX Series: Hard-coded credentials allow an attacker to take control of any instance through administrative interfaces.

Description

This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Credentials in Juniper Networks Junos OS allows an attacker to take over any instance of an NFX deployment. This issue is only exploitable through administrative interfaces. This issue affects: Juniper Networks Junos OS versions prior to 19.1R1 on NFX Series. No other platforms besides NFX Series devices are affected.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: 19.1R1, and all subsequent releases.

Workaround:

  • There are no known workarounds for this issue. To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to the device's administrative interfaces to only trusted administrative networks, hosts and users.

Category

10.0
CVSS
Severity: Critical
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/JSA11141 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-0248?
CVE-2021-0248 has been scored as a critical severity vulnerability.
How to fix CVE-2021-0248?
To fix CVE-2021-0248: The following software releases have been updated to resolve this specific issue: 19.1R1, and all subsequent releases.
Is CVE-2021-0248 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-0248 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-2021-0248?
CVE-2021-0248 affects Juniper Networks Junos OS.
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