CVE-2021-0231

Junos OS: SRX, vSRX Series: J-Web Path traversal vulnerability in SRX and vSRX Series leads to information disclosure.

Description

A path traversal vulnerability in the Juniper Networks SRX and vSRX Series may allow an authenticated J-web user to read sensitive system files. This issue affects Juniper Networks Junos OS on SRX and vSRX Series: 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R2-S4, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R1-S3, 20.2R2; This issue does not affect Juniper Networks Junos OS versions prior to 19.3R1.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: 19.3R2-S6, 19.3R3-S1, 19.4R2-S4, 19.4R3, 20.1R1-S4, 20.1R2, 20.2R1-S3, 20.2R2, 20.3R1, 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 only trusted administrative networks, hosts and users.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.27%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA11126 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-0231?
CVE-2021-0231 has been scored as a medium severity vulnerability.
How to fix CVE-2021-0231?
To fix CVE-2021-0231: The following software releases have been updated to resolve this specific issue: 19.3R2-S6, 19.3R3-S1, 19.4R2-S4, 19.4R3, 20.1R1-S4, 20.1R2, 20.2R1-S3, 20.2R2, 20.3R1, and all subsequent releases.
Is CVE-2021-0231 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-0231 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-2021-0231?
CVE-2021-0231 affects Juniper Networks Junos OS, Juniper Networks Junos OS.
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