CVE-2020-1688

Junos OS: SRX and NFX Series: Insufficient Web API private key protection

Description

On Juniper Networks SRX Series and NFX Series, a local authenticated user with access to the shell may obtain the Web API service private key that is used to provide encrypted communication between the Juniper device and the authenticator services. Exploitation of this vulnerability may allow an attacker to decrypt the communications between the Juniper device and the authenticator service. This Web API service is used for authentication services such as the Juniper Identity Management Service, used to obtain user identity for Integrated User Firewall feature, or the integrated ClearPass authentication and enforcement feature. This issue affects Juniper Networks Junos OS on Networks SRX Series and NFX Series: 12.3X48 versions prior to 12.3X48-D105; 15.1X49 versions prior to 15.1X49-D190; 16.1 versions prior to 16.1R7-S8; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S11, 17.4R3; 18.1 versions prior to 18.1R3-S7; 18.2 versions prior to 18.2R3; 18.3 versions prior to 18.3R2-S4, 18.3R3; 18.4 versions prior to 18.4R1-S7, 18.4R2; 19.1 versions prior to 19.1R2; 19.2 versions prior to 19.2R1-S4, 19.2R2.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS 12.3X48-D105, 15.1X49-D190, 16.1R7-S8, 17.2R3-S4, 17.3R3-S8, 17.4R2-S11, 17.4R3, 18.1R3-S7, 18.2R3, 18.3R2-S4, 18.3R3, 18.4R1-S7, 18.4R2, 18.4R3, 19.1R2, 19.2R1-S4, 19.2R2, 19.3R1, and all subsequent releases.

Workaround:

  • Disallow unprivileged authenticated users access to Junos shell. Limit shell access to only trusted administrators.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory juniper.net Vendor Advisory juniper.net Vendor Advisory juniper.net Vendor Advisory juniper.net Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA11085 vendor advisory
https://kb.juniper.net/InfoCenter/index?page=content&id=KB30911 vendor advisory
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/security-user-auth-configure-jims.html vendor advisory
https://www.juniper.net/documentation/en_US/junos/topics/topic-map/security-user-auth-intergrated-user-firewall-overview.html vendor advisory
https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/services-webapi-user-cli.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-1688?
CVE-2020-1688 has been scored as a medium severity vulnerability.
How to fix CVE-2020-1688?
To fix CVE-2020-1688: The following software releases have been updated to resolve this specific issue: Junos OS 12.3X48-D105, 15.1X49-D190, 16.1R7-S8, 17.2R3-S4, 17.3R3-S8, 17.4R2-S11, 17.4R3, 18.1R3-S7, 18.2R3, 18.3R2-S4, 18.3R3, 18.4R1-S7, 18.4R2, 18.4R3, 19.1R2, 19.2R1-S4, 19.2R2, 19.3R1, and all subsequent releases.
Is CVE-2020-1688 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-1688 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-2020-1688?
CVE-2020-1688 affects Juniper Networks Junos OS.
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