CVE-2020-1600

Summary

In a Point-to-Multipoint (P2MP) Label Switched Path (LSP) scenario, an uncontrolled resource consumption vulnerability in the Routing Protocol Daemon (RPD) in Juniper Networks Junos OS allows a specific SNMP request to trigger an infinite loop causing a high CPU usage Denial of Service (DoS) condition. This issue affects both SNMP over IPv4 and IPv6. This issue affects: Juniper Networks Junos OS: 12.3X48 versions prior to 12.3X48-D90; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D238, 15.1X53-D592; 16.1 versions prior to 16.1R7-S5; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R3-S1; 17.2 versions prior to 17.2R3-S2; 17.3 versions prior to 17.3R3-S7; 17.4 versions prior to 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R3-S5; 18.2 versions prior to 18.2R3; 18.2X75 versions prior to 18.2X75-D50; 18.3 versions prior to 18.3R2; 18.4 versions prior to 18.4R2; 19.1 versions prior to 19.1R2.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS12.3X48 < 12.3X48-D90affected
Juniper NetworksJunos OS15.1X53 < 15.1X53-D238, 15.1X53-D592affected
Juniper NetworksJunos OS16.1 < 16.1R7-S5affected
Juniper NetworksJunos OS16.2 < 16.2R2-S11affected
Juniper NetworksJunos OS17.1 < 17.1R2-S11, 17.1R3-S1affected
Juniper NetworksJunos OS17.2 < 17.2R3-S2affected
Juniper NetworksJunos OS17.3 < 17.3R3-S7affected
Juniper NetworksJunos OS17.4 < 17.4R2-S4, 17.4R3affected
Juniper NetworksJunos OS18.1 < 18.1R3-S5affected
Juniper NetworksJunos OS18.2 < 18.2R3affected
Juniper NetworksJunos OS18.2X75 < 18.2X75-D50affected
Juniper NetworksJunos OS18.3 < 18.3R2affected
Juniper NetworksJunos OS18.4 < 18.4R2affected
Juniper NetworksJunos OS19.1 < 19.1R2affected
Juniper NetworksJunos OS19.2 < 19.2R1affected
Juniper NetworksJunos OS15.1X49 < 15.1X49-D200affected
Juniper NetworksJunos OS15.1 < 15.1R7-S6affected

Weaknesses

  • CWE-400: CWE-400 Uncontrolled Resource Consumption

Workarounds

If SNMP is not needed, remove SNMP from the system, otherwise, there are no available workarounds for this issue. SNMP is disabled by default.

Additional steps which may reduce the risk of exploitation include: Utilizing edge filtering with source-address validation (uRPF, etc.), access control lists (ACLs), and/or SNMPv3 authentication to limit access to the device only from trusted hosts.

ADP Enrichment

CVE Program Container

Additional References

References