CVE-2018-0057

published 2018-10-10

CVE-2018-0057: On MX Series and M120/M320 platforms configured in a Broadband Edge (BBE) environment, subscribers logging in with DHCP Option 50 to request a specific IP…

Priority P3 47 critical 9.6 CVSS 3.0

AV N AC L PR L UI N S C C H I N A H

On MX Series and M120/M320 platforms configured in a Broadband Edge (BBE) environment, subscribers logging in with DHCP Option 50 to request a specific IP address will be assigned the requested IP address, even if there is a static MAC to IP address binding in the access profile. In the problem scenario, with a hardware-address and IP address configured under address-assignment pool, if a subscriber logging in with DHCP Option 50, the subscriber will not be assigned an available address from the matched pool, but will still get the requested IP address. A malicious DHCP subscriber may be able to utilize this vulnerability to create duplicate IP address assignments, leading to a denial of service for valid subscribers or unauthorized information disclosure via IP address assignment spoofing. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S2, 15.1R8; 16.1 versions prior to 16.1R4-S12, 16.1R7-S2, 16.1R8; 16.2 versions prior to 16.2R2-S7, 16.2R3; 17.1 versions prior to 17.1R2-S9, 17.1R3; 17.2 versions prior to 17.2R1-S7, 17.2R2-S6, 17.2R3; 17.3 versions prior to 17.3R2-S4, 17.3R3; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R2-S3, 18.1R3.

Affected

18 ranges

Vendor	Product	Version range	Fixed in
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper	mx_series	—	—
juniper_networks	junos_os	>= 15.1 < 15.1R7-S2, 15.1R8	15.1R7-S2, 15.1R8
juniper_networks	junos_os	>= 16.1 < 16.1R4-S12, 16.1R7-S2, 16.1R8	16.1R4-S12, 16.1R7-S2, 16.1R8
juniper_networks	junos_os	>= 16.2 < 16.2R2-S7, 16.2R3	16.2R2-S7, 16.2R3
juniper_networks	junos_os	>= 17.1 < 17.1R2-S9, 17.1R3	17.1R2-S9, 17.1R3
juniper_networks	junos_os	>= 17.2 < 17.2R1-S7, 17.2R2-S6, 17.2R3	17.2R1-S7, 17.2R2-S6, 17.2R3
juniper_networks	junos_os	>= 17.3 < 17.3R2-S4, 17.3R3	17.3R2-S4, 17.3R3
juniper_networks	junos_os	>= 17.4 < 17.4R2	17.4R2
juniper_networks	junos_os	>= 18.1 < 18.1R2-S3, 18.1R3	18.1R2-S3, 18.1R3

CVSS provenance

nvd v3.0 9.6 CRITICAL CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H

nvd v2.0 5.5 MEDIUM AV:N/AC:L/Au:S/C:P/I:N/A:P

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