CVE-2018-0009

SRX Series: Firewall bypass vulnerability when UUID with leading zeros is configured.

Description

On Juniper Networks SRX series devices, firewall rules configured to match custom application UUIDs starting with zeros can match all TCP traffic. Due to this issue, traffic that should have been blocked by other rules is permitted to flow through the device resulting in a firewall bypass condition. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D71 on SRX series; 12.3X48 versions prior to 12.3X48-D55 on SRX series; 15.1X49 versions prior to 15.1X49-D100 on SRX series.

Remediation

Solution:

The following software releases have been updated to resolve this specific issue: 12.1X46-D71, 12.3X48-D55, 15.1X49-D100, 17.3R1, and all subsequent releases.

Workaround:

Do not use UUIDs starting with zeros in the configuration.

5.4

CVSS

Severity: Medium

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.25%

Vendor Advisory juniper.net

Affected: Juniper Networks Junos OS

References

Link	Tags
https://kb.juniper.net/JSA10836	patch vendor advisory mitigation
http://www.securitytracker.com/id/1040187	third party advisory vdb entry
http://www.securityfocus.com/bid/102491	third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2018-0009?: CVE-2018-0009 has been scored as a medium severity vulnerability.
How to fix CVE-2018-0009?: To fix CVE-2018-0009: The following software releases have been updated to resolve this specific issue: 12.1X46-D71, 12.3X48-D55, 15.1X49-D100, 17.3R1, and all subsequent releases.
Is CVE-2018-0009 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2018-0009 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-2018-0009?: CVE-2018-0009 affects Juniper Networks Junos OS.

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