Juniper Junos BGP FlowSpec improper adherence to coding standards

Summaryinfo

A vulnerability was found in Juniper Junos. It has been declared as problematic. Affected by this issue is some unknown functionality of the component BGP FlowSpec. Executing a manipulation can lead to improper adherence to coding standards. This vulnerability is handled as CVE-2020-1613. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Juniper Junos (Router Operating System) (version now known). This vulnerability affects some unknown processing of the component BGP FlowSpec. The manipulation with an unknown input leads to a improper adherence to coding standards vulnerability. The CWE definition for the vulnerability is CWE-710. The product does not follow certain coding rules for development, which can lead to resultant weaknesses or increase the severity of the associated vulnerabilities. As an impact it is known to affect availability. CVE summarizes:

A vulnerability in the BGP FlowSpec implementation may cause a Juniper Networks Junos OS device to terminate an established BGP session upon receiving a specific BGP FlowSpec advertisement. The BGP NOTIFICATION message that terminates an established BGP session is sent toward the peer device that originally sent the specific BGP FlowSpec advertisement. This specific BGP FlowSpec advertisement received from a BGP peer might get propagated from a Junos OS device running the fixed release to another device that is vulnerable causing BGP session termination downstream. This issue affects IPv4 and IPv6 BGP FlowSpec deployment. This issue affects Juniper Networks Junos OS: 12.3; 12.3X48 on SRX Series; 14.1X53 on EX and QFX Series; 15.1 versions prior to 15.1R7-S5; 15.1F versions prior to 15.1F6-S13; 15.1X49 versions prior to 15.1X49-D180 on SRX Series; 15.1X53 versions prior to 15.1X53-D238 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D497 on NFX Series; 15.1X53 versions prior to 15.1X53-D592 on EX2300/EX3400; 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R2-S12, 17.1R3; 17.2 versions prior to 17.2R2-S7, 17.2R3; 17.2X75 versions prior to 17.2X75-D102, 17.2X75-D110, 17.2X75-D44; 17.3 versions prior to 17.3R2-S5, 17.3R3-S5; 17.4 versions prior to 17.4R1-S8, 17.4R2; 18.1 versions prior to 18.1R2-S4, 18.1R3; 18.2X75 versions prior to 18.2X75-D20.

The weakness was released 04/08/2020 (Website). The advisory is shared for download at kb.juniper.net. This vulnerability was named CVE-2020-1613 since 11/04/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-152960 and VDB-152958. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Juniper

Name

• Junos

License

• commercial

Website

• Vendor: https://www.juniper.net/

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Once again VulDB remains the best source for vulnerability data.

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