Juniper Junos Firewall Filter Packet 7pk security

Summaryinfo

A vulnerability marked as critical has been reported in Juniper Junos. The impacted element is an unknown function of the component Firewall Filter. Performing a manipulation as part of Packet results in 7pk security. This vulnerability is known as CVE-2019-0036. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Juniper Junos (Router Operating System) (the affected version is unknown). It has been classified as critical. This affects an unknown code of the component Firewall Filter. The manipulation as part of a Packet leads to a 7pk security vulnerability. CWE is classifying the issue as CWE-254. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

When configuring a stateless firewall filter in Junos OS, terms named using the format "internal-n" (e.g. "internal-1", "internal-2", etc.) are silently ignored. No warning is issued during configuration, and the config is committed without error, but the filter criteria will match all packets leading to unexpected results. Affected releases are Juniper Networks Junos OS: All versions prior to and including 12.3; 14.1X53 versions prior to 14.1X53-D130, 14.1X53-D49; 15.1 versions prior to 15.1F6-S12, 15.1R7-S4; 15.1X49 versions prior to 15.1X49-D161, 15.1X49-D170; 15.1X53 versions prior to 15.1X53-D236, 15.1X53-D496, 15.1X53-D69; 16.1 versions prior to 16.1R7-S4, 16.1R7-S5; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R3-S1; 17.3 versions prior to 17.3R3-S4; 17.4 versions prior to 17.4R1-S7, 17.4R2-S3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S4; 18.2 versions prior to 18.2R1-S5, 18.2R2-S1; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S3; 18.4 versions prior to 18.4R1-S1, 18.4R1-S2.

The bug was discovered 04/10/2019. The weakness was published 04/10/2019 (Website). The advisory is shared at kb.juniper.net. This vulnerability is uniquely identified as CVE-2019-0036 since 10/11/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1211 for this issue.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 43677 (Juniper Junos Firewall Filter Packet Privilege Escalation Vulnerability (JSA10925)).

Upgrading eliminates this vulnerability.

Similar entries are available at VDB-133309, VDB-133308, VDB-133307 and VDB-133306. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Juniper

Name

• Junos

License

• commercial

Website

• Vendor: https://www.juniper.net/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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