Juniper Junos Telemetry Interface privileges management

Summaryinfo

A vulnerability identified as critical has been detected in Juniper Junos. Impacted is an unknown function of the component Telemetry Interface. This manipulation causes privileges management. This vulnerability appears as CVE-2019-0034. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Juniper Junos (Router Operating System) (affected version not known) and classified as critical. Affected by this vulnerability is some unknown functionality of the component Telemetry Interface. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Starting with Junos OS Release 16.1R3, the Junos Telemetry Interface supports Google gRPC remote procedure calls to provision sensors and to subscribe to and receive telemetry data. Configuration files used by gRPC were found to contain hardcoded credentials that could be used by the Junos Network Agent to perform unauthorized read of certain non-critical information (e.g. sensor data). Additionally, APIs exposed via the Juniper Extension Toolkit (JET) may be able to perform non-critical 'set' operations on the device. These APIs need the client to be authenticated for which the username/password can be used. Successful exploitation of this vulnerability can only occur if the Junos Network Agent package (Junos Telemetry Interface) is installed on the device. If the Junos Network Agent is not installed, then the gRPC interface required to leverage these credentials is unavailable and the system is not vulnerable to this issue. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R3-S10, 16.1R7-S4; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R3-S1; 17.3 versions prior to 17.3R3-S3; 17.4 versions prior to 17.4R1-S6, 17.4R2-S3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S3; 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-S2, 18.3R1-S3. This issue does not affect Junos OS releases prior to 16.1.

The bug was discovered 04/10/2019. The weakness was presented 04/10/2019 (Website). It is possible to read the advisory at kb.juniper.net. This vulnerability is known as CVE-2019-0034 since 10/11/2018. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

See VDB-133307, VDB-133306, VDB-133305 and VDB-133302 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Juniper

Name

• Junos

License

• commercial

Website

• Vendor: https://www.juniper.net/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion