CVE-2018-0024

Junos OS: A privilege escalation vulnerability exists where authenticated users with shell access can become root

Description

An Improper Privilege Management vulnerability in a shell session of Juniper Networks Junos OS allows an authenticated unprivileged attacker to gain full control of the system. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D45 on SRX Series; 12.3X48 versions prior to 12.3X48-D20 on SRX Series; 12.3 versions prior to 12.3R11 on EX Series; 14.1X53 versions prior to 14.1X53-D30 on EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100;; 15.1X49 versions prior to 15.1X49-D20 on SRX Series.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS 12.1X46-D45, 12.3X48-D20, 12.3R11, 14.1X53-D30, 15.1X49-D20 and all subsequent releases.

Workaround:

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

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1041314 vdb entry third party advisory
https://kb.juniper.net/JSA10857 mitigation vendor advisory
http://www.securityfocus.com/bid/104718 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-0024?
CVE-2018-0024 has been scored as a high severity vulnerability.
How to fix CVE-2018-0024?
To fix CVE-2018-0024: The following software releases have been updated to resolve this specific issue: Junos OS 12.1X46-D45, 12.3X48-D20, 12.3R11, 14.1X53-D30, 15.1X49-D20 and all subsequent releases.
Is CVE-2018-0024 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-0024 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-2018-0024?
CVE-2018-0024 affects Juniper Networks Junos OS, Juniper Networks Junos OS, Juniper Networks Junos OS.
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