On QFX10000 Series devices using Juniper Networks Junos OS when configured as transit IP/MPLS penultimate hop popping (PHP) nodes with link aggregation group (LAG) interfaces, an Improper Validation of Specified Index, Position, or Offset in Input weakness allows an attacker sending certain IP packets to cause multiple interfaces in the LAG to detach causing a Denial of Service (DoS) condition. Continued receipt and processing of these packets will sustain the Denial of Service. This issue affects IPv4 and IPv6 packets. Packets of either type can cause and sustain the DoS event. These packets can be destined to the device or be transit packets. On devices such as the QFX10008 with line cards, line cards can be restarted to restore service. On devices such as the QFX10002 you can restart the PFE service, or reboot device to restore service. This issue affects: Juniper Networks Junos OS on QFX10000 Series: All versions prior to 15.1R7-S11; 18.4 versions prior to 18.4R2-S10, 18.4R3-S10; 19.1 versions prior to 19.1R3-S8; 19.2 versions prior to 19.2R3-S4; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R2-S6, 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S1. An indicator of compromise may be seen by issuing the command: request pfe execute target fpc0 command show jspec pechip[3] registers ps l2_node 10 timeout 0 | refresh 1 | no-more and reviewing for backpressured output; for example: GOT: 0x220702a8 pe.ps.l2_node[10].pkt_cnt 00000076 GOT: 0x220702b4 pe.ps.l2_node[10].backpressured 00000002 «« STICKS HERE and requesting detail on the pepic wanio: request pfe execute target fpc0 command show pepic 0 wanio-info timeout 0 | no-more | match xe-0/0/0:2 GOT: 3 xe-0/0/0:2 10 6 3 0 1 10 189 10 0x6321b088 «< LOOK HERE as well as looking for tail drops looking at the interface queue, for example: show interfaces queue xe-0/0/0:2 resulting in: Transmitted: Total-dropped packets: 1094137 0 pps « LOOK HERE
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Junos | Juniper | * | 15.1 (excluding) |
Junos | Juniper | 15.1 (including) | 15.1 (including) |
Junos | Juniper | 15.1-a1 (including) | 15.1-a1 (including) |
Junos | Juniper | 15.1-f (including) | 15.1-f (including) |
Junos | Juniper | 15.1-f1 (including) | 15.1-f1 (including) |
Junos | Juniper | 15.1-f2 (including) | 15.1-f2 (including) |
Junos | Juniper | 15.1-f2-s1 (including) | 15.1-f2-s1 (including) |
Junos | Juniper | 15.1-f2-s2 (including) | 15.1-f2-s2 (including) |
Junos | Juniper | 15.1-f2-s3 (including) | 15.1-f2-s3 (including) |
Junos | Juniper | 15.1-f2-s4 (including) | 15.1-f2-s4 (including) |
Junos | Juniper | 15.1-f3 (including) | 15.1-f3 (including) |
Junos | Juniper | 15.1-f4 (including) | 15.1-f4 (including) |
Junos | Juniper | 15.1-f5 (including) | 15.1-f5 (including) |
Junos | Juniper | 15.1-f5-s7 (including) | 15.1-f5-s7 (including) |
Junos | Juniper | 15.1-f6 (including) | 15.1-f6 (including) |
Junos | Juniper | 15.1-f6-s1 (including) | 15.1-f6-s1 (including) |
Junos | Juniper | 15.1-f6-s10 (including) | 15.1-f6-s10 (including) |
Junos | Juniper | 15.1-f6-s12 (including) | 15.1-f6-s12 (including) |
Junos | Juniper | 15.1-f6-s2 (including) | 15.1-f6-s2 (including) |
Junos | Juniper | 15.1-f6-s3 (including) | 15.1-f6-s3 (including) |
Junos | Juniper | 15.1-f6-s4 (including) | 15.1-f6-s4 (including) |
Junos | Juniper | 15.1-f6-s5 (including) | 15.1-f6-s5 (including) |
Junos | Juniper | 15.1-f6-s6 (including) | 15.1-f6-s6 (including) |
Junos | Juniper | 15.1-f6-s7 (including) | 15.1-f6-s7 (including) |
Junos | Juniper | 15.1-f6-s8 (including) | 15.1-f6-s8 (including) |
Junos | Juniper | 15.1-f6-s9 (including) | 15.1-f6-s9 (including) |
Junos | Juniper | 15.1-f7 (including) | 15.1-f7 (including) |
Junos | Juniper | 15.1-r (including) | 15.1-r (including) |
Junos | Juniper | 15.1-r1 (including) | 15.1-r1 (including) |
Junos | Juniper | 15.1-r2 (including) | 15.1-r2 (including) |
Junos | Juniper | 15.1-r3 (including) | 15.1-r3 (including) |
Junos | Juniper | 15.1-r4 (including) | 15.1-r4 (including) |
Junos | Juniper | 15.1-r4-s7 (including) | 15.1-r4-s7 (including) |
Junos | Juniper | 15.1-r4-s8 (including) | 15.1-r4-s8 (including) |
Junos | Juniper | 15.1-r4-s9 (including) | 15.1-r4-s9 (including) |
Junos | Juniper | 15.1-r5 (including) | 15.1-r5 (including) |
Junos | Juniper | 15.1-r5-s1 (including) | 15.1-r5-s1 (including) |
Junos | Juniper | 15.1-r5-s3 (including) | 15.1-r5-s3 (including) |
Junos | Juniper | 15.1-r5-s5 (including) | 15.1-r5-s5 (including) |
Junos | Juniper | 15.1-r5-s6 (including) | 15.1-r5-s6 (including) |
Junos | Juniper | 15.1-r6 (including) | 15.1-r6 (including) |
Junos | Juniper | 15.1-r6-s1 (including) | 15.1-r6-s1 (including) |
Junos | Juniper | 15.1-r6-s2 (including) | 15.1-r6-s2 (including) |
Junos | Juniper | 15.1-r6-s3 (including) | 15.1-r6-s3 (including) |
Junos | Juniper | 15.1-r6-s4 (including) | 15.1-r6-s4 (including) |
Junos | Juniper | 15.1-r6-s6 (including) | 15.1-r6-s6 (including) |
Junos | Juniper | 15.1-r7 (including) | 15.1-r7 (including) |
Junos | Juniper | 15.1-r7-s1 (including) | 15.1-r7-s1 (including) |
Junos | Juniper | 15.1-r7-s10 (including) | 15.1-r7-s10 (including) |
Junos | Juniper | 15.1-r7-s2 (including) | 15.1-r7-s2 (including) |
Junos | Juniper | 15.1-r7-s3 (including) | 15.1-r7-s3 (including) |
Junos | Juniper | 15.1-r7-s4 (including) | 15.1-r7-s4 (including) |
Junos | Juniper | 15.1-r7-s5 (including) | 15.1-r7-s5 (including) |
Junos | Juniper | 15.1-r7-s6 (including) | 15.1-r7-s6 (including) |
Junos | Juniper | 15.1-r7-s7 (including) | 15.1-r7-s7 (including) |
Junos | Juniper | 15.1-r7-s8 (including) | 15.1-r7-s8 (including) |
Junos | Juniper | 15.1-r7-s9 (including) | 15.1-r7-s9 (including) |
Junos | Juniper | 18.4 (including) | 18.4 (including) |
Junos | Juniper | 18.4-r1 (including) | 18.4-r1 (including) |
Junos | Juniper | 18.4-r1-s1 (including) | 18.4-r1-s1 (including) |
Junos | Juniper | 18.4-r1-s2 (including) | 18.4-r1-s2 (including) |
Junos | Juniper | 18.4-r1-s3 (including) | 18.4-r1-s3 (including) |
Junos | Juniper | 18.4-r1-s4 (including) | 18.4-r1-s4 (including) |
Junos | Juniper | 18.4-r1-s5 (including) | 18.4-r1-s5 (including) |
Junos | Juniper | 18.4-r1-s6 (including) | 18.4-r1-s6 (including) |
Junos | Juniper | 18.4-r1-s7 (including) | 18.4-r1-s7 (including) |
Junos | Juniper | 18.4-r2 (including) | 18.4-r2 (including) |
Junos | Juniper | 18.4-r2-s1 (including) | 18.4-r2-s1 (including) |
Junos | Juniper | 18.4-r2-s2 (including) | 18.4-r2-s2 (including) |
Junos | Juniper | 18.4-r2-s3 (including) | 18.4-r2-s3 (including) |
Junos | Juniper | 18.4-r2-s4 (including) | 18.4-r2-s4 (including) |
Junos | Juniper | 18.4-r2-s5 (including) | 18.4-r2-s5 (including) |
Junos | Juniper | 18.4-r2-s6 (including) | 18.4-r2-s6 (including) |
Junos | Juniper | 18.4-r2-s7 (including) | 18.4-r2-s7 (including) |
Junos | Juniper | 18.4-r2-s8 (including) | 18.4-r2-s8 (including) |
Junos | Juniper | 18.4-r2-s9 (including) | 18.4-r2-s9 (including) |
Junos | Juniper | 18.4-r3 (including) | 18.4-r3 (including) |
Junos | Juniper | 18.4-r3-s1 (including) | 18.4-r3-s1 (including) |
Junos | Juniper | 18.4-r3-s2 (including) | 18.4-r3-s2 (including) |
Junos | Juniper | 18.4-r3-s3 (including) | 18.4-r3-s3 (including) |
Junos | Juniper | 18.4-r3-s4 (including) | 18.4-r3-s4 (including) |
Junos | Juniper | 18.4-r3-s5 (including) | 18.4-r3-s5 (including) |
Junos | Juniper | 18.4-r3-s6 (including) | 18.4-r3-s6 (including) |
Junos | Juniper | 18.4-r3-s7 (including) | 18.4-r3-s7 (including) |
Junos | Juniper | 18.4-r3-s8 (including) | 18.4-r3-s8 (including) |
Junos | Juniper | 18.4-r3-s9 (including) | 18.4-r3-s9 (including) |
Junos | Juniper | 19.1 (including) | 19.1 (including) |
Junos | Juniper | 19.1-r1 (including) | 19.1-r1 (including) |
Junos | Juniper | 19.1-r1-s1 (including) | 19.1-r1-s1 (including) |
Junos | Juniper | 19.1-r1-s2 (including) | 19.1-r1-s2 (including) |
Junos | Juniper | 19.1-r1-s3 (including) | 19.1-r1-s3 (including) |
Junos | Juniper | 19.1-r1-s4 (including) | 19.1-r1-s4 (including) |
Junos | Juniper | 19.1-r1-s5 (including) | 19.1-r1-s5 (including) |
Junos | Juniper | 19.1-r1-s6 (including) | 19.1-r1-s6 (including) |
Junos | Juniper | 19.1-r2 (including) | 19.1-r2 (including) |
Junos | Juniper | 19.1-r2-s1 (including) | 19.1-r2-s1 (including) |
Junos | Juniper | 19.1-r2-s2 (including) | 19.1-r2-s2 (including) |
Junos | Juniper | 19.1-r2-s3 (including) | 19.1-r2-s3 (including) |
Junos | Juniper | 19.1-r3 (including) | 19.1-r3 (including) |
Junos | Juniper | 19.1-r3-s1 (including) | 19.1-r3-s1 (including) |
Junos | Juniper | 19.1-r3-s2 (including) | 19.1-r3-s2 (including) |
Junos | Juniper | 19.1-r3-s3 (including) | 19.1-r3-s3 (including) |
Junos | Juniper | 19.1-r3-s4 (including) | 19.1-r3-s4 (including) |
Junos | Juniper | 19.1-r3-s5 (including) | 19.1-r3-s5 (including) |
Junos | Juniper | 19.1-r3-s6 (including) | 19.1-r3-s6 (including) |
Junos | Juniper | 19.1-r3-s7 (including) | 19.1-r3-s7 (including) |
Junos | Juniper | 19.2 (including) | 19.2 (including) |
Junos | Juniper | 19.2-r1 (including) | 19.2-r1 (including) |
Junos | Juniper | 19.2-r1-s1 (including) | 19.2-r1-s1 (including) |
Junos | Juniper | 19.2-r1-s2 (including) | 19.2-r1-s2 (including) |
Junos | Juniper | 19.2-r1-s3 (including) | 19.2-r1-s3 (including) |
Junos | Juniper | 19.2-r1-s4 (including) | 19.2-r1-s4 (including) |
Junos | Juniper | 19.2-r1-s5 (including) | 19.2-r1-s5 (including) |
Junos | Juniper | 19.2-r1-s6 (including) | 19.2-r1-s6 (including) |
Junos | Juniper | 19.2-r1-s7 (including) | 19.2-r1-s7 (including) |
Junos | Juniper | 19.2-r1-s8 (including) | 19.2-r1-s8 (including) |
Junos | Juniper | 19.2-r1-s9 (including) | 19.2-r1-s9 (including) |
Junos | Juniper | 19.2-r2 (including) | 19.2-r2 (including) |
Junos | Juniper | 19.2-r2-s1 (including) | 19.2-r2-s1 (including) |
Junos | Juniper | 19.2-r3 (including) | 19.2-r3 (including) |
Junos | Juniper | 19.2-r3-s1 (including) | 19.2-r3-s1 (including) |
Junos | Juniper | 19.2-r3-s2 (including) | 19.2-r3-s2 (including) |
Junos | Juniper | 19.2-r3-s3 (including) | 19.2-r3-s3 (including) |
Junos | Juniper | 19.3 (including) | 19.3 (including) |
Junos | Juniper | 19.3-r1 (including) | 19.3-r1 (including) |
Junos | Juniper | 19.3-r1-s1 (including) | 19.3-r1-s1 (including) |
Junos | Juniper | 19.3-r2 (including) | 19.3-r2 (including) |
Junos | Juniper | 19.3-r2-s1 (including) | 19.3-r2-s1 (including) |
Junos | Juniper | 19.3-r2-s2 (including) | 19.3-r2-s2 (including) |
Junos | Juniper | 19.3-r2-s3 (including) | 19.3-r2-s3 (including) |
Junos | Juniper | 19.3-r2-s4 (including) | 19.3-r2-s4 (including) |
Junos | Juniper | 19.3-r2-s5 (including) | 19.3-r2-s5 (including) |
Junos | Juniper | 19.3-r2-s6 (including) | 19.3-r2-s6 (including) |
Junos | Juniper | 19.3-r3 (including) | 19.3-r3 (including) |
Junos | Juniper | 19.3-r3-s1 (including) | 19.3-r3-s1 (including) |
Junos | Juniper | 19.3-r3-s2 (including) | 19.3-r3-s2 (including) |
Junos | Juniper | 19.3-r3-s3 (including) | 19.3-r3-s3 (including) |
Junos | Juniper | 19.3-r3-s4 (including) | 19.3-r3-s4 (including) |
Junos | Juniper | 19.4 (including) | 19.4 (including) |
Junos | Juniper | 19.4-r1 (including) | 19.4-r1 (including) |
Junos | Juniper | 19.4-r1-s1 (including) | 19.4-r1-s1 (including) |
Junos | Juniper | 19.4-r1-s2 (including) | 19.4-r1-s2 (including) |
Junos | Juniper | 19.4-r1-s3 (including) | 19.4-r1-s3 (including) |
Junos | Juniper | 19.4-r1-s4 (including) | 19.4-r1-s4 (including) |
Junos | Juniper | 19.4-r2 (including) | 19.4-r2 (including) |
Junos | Juniper | 19.4-r2-s1 (including) | 19.4-r2-s1 (including) |
Junos | Juniper | 19.4-r2-s2 (including) | 19.4-r2-s2 (including) |
Junos | Juniper | 19.4-r2-s3 (including) | 19.4-r2-s3 (including) |
Junos | Juniper | 19.4-r2-s4 (including) | 19.4-r2-s4 (including) |
Junos | Juniper | 19.4-r2-s5 (including) | 19.4-r2-s5 (including) |
Junos | Juniper | 19.4-r3 (including) | 19.4-r3 (including) |
Junos | Juniper | 19.4-r3-s1 (including) | 19.4-r3-s1 (including) |
Junos | Juniper | 19.4-r3-s2 (including) | 19.4-r3-s2 (including) |
Junos | Juniper | 19.4-r3-s3 (including) | 19.4-r3-s3 (including) |
Junos | Juniper | 19.4-r3-s4 (including) | 19.4-r3-s4 (including) |
Junos | Juniper | 19.4-r3-s5 (including) | 19.4-r3-s5 (including) |
Junos | Juniper | 19.4-r3-s6 (including) | 19.4-r3-s6 (including) |
Junos | Juniper | 20.1 (including) | 20.1 (including) |
Junos | Juniper | 20.1-r1 (including) | 20.1-r1 (including) |
Junos | Juniper | 20.1-r1-s1 (including) | 20.1-r1-s1 (including) |
Junos | Juniper | 20.1-r1-s2 (including) | 20.1-r1-s2 (including) |
Junos | Juniper | 20.1-r1-s3 (including) | 20.1-r1-s3 (including) |
Junos | Juniper | 20.1-r1-s4 (including) | 20.1-r1-s4 (including) |
Junos | Juniper | 20.1-r2 (including) | 20.1-r2 (including) |
Junos | Juniper | 20.1-r2-s1 (including) | 20.1-r2-s1 (including) |
Junos | Juniper | 20.1-r2-s2 (including) | 20.1-r2-s2 (including) |
Junos | Juniper | 20.1-r3 (including) | 20.1-r3 (including) |
Junos | Juniper | 20.1-r3-s1 (including) | 20.1-r3-s1 (including) |
Junos | Juniper | 20.1-r3-s2 (including) | 20.1-r3-s2 (including) |
Junos | Juniper | 20.2 (including) | 20.2 (including) |
Junos | Juniper | 20.2-r1 (including) | 20.2-r1 (including) |
Junos | Juniper | 20.2-r1-s1 (including) | 20.2-r1-s1 (including) |
Junos | Juniper | 20.2-r1-s2 (including) | 20.2-r1-s2 (including) |
Junos | Juniper | 20.2-r1-s3 (including) | 20.2-r1-s3 (including) |
Junos | Juniper | 20.2-r2 (including) | 20.2-r2 (including) |
Junos | Juniper | 20.2-r2-s1 (including) | 20.2-r2-s1 (including) |
Junos | Juniper | 20.2-r2-s2 (including) | 20.2-r2-s2 (including) |
Junos | Juniper | 20.2-r2-s3 (including) | 20.2-r2-s3 (including) |
Junos | Juniper | 20.2-r3 (including) | 20.2-r3 (including) |
Junos | Juniper | 20.2-r3-s1 (including) | 20.2-r3-s1 (including) |
Junos | Juniper | 20.2-r3-s2 (including) | 20.2-r3-s2 (including) |
Junos | Juniper | 20.3 (including) | 20.3 (including) |
Junos | Juniper | 20.3-r1 (including) | 20.3-r1 (including) |
Junos | Juniper | 20.3-r1-s1 (including) | 20.3-r1-s1 (including) |
Junos | Juniper | 20.3-r1-s2 (including) | 20.3-r1-s2 (including) |
Junos | Juniper | 20.3-r2 (including) | 20.3-r2 (including) |
Junos | Juniper | 20.3-r2-s1 (including) | 20.3-r2-s1 (including) |
Junos | Juniper | 20.3-r3 (including) | 20.3-r3 (including) |
Junos | Juniper | 20.3-r3-s1 (including) | 20.3-r3-s1 (including) |
Junos | Juniper | 20.4 (including) | 20.4 (including) |
Junos | Juniper | 20.4-r1 (including) | 20.4-r1 (including) |
Junos | Juniper | 20.4-r1-s1 (including) | 20.4-r1-s1 (including) |
Junos | Juniper | 20.4-r2 (including) | 20.4-r2 (including) |
Junos | Juniper | 20.4-r2-s1 (including) | 20.4-r2-s1 (including) |
Junos | Juniper | 20.4-r2-s2 (including) | 20.4-r2-s2 (including) |
Junos | Juniper | 20.4-r3 (including) | 20.4-r3 (including) |
Junos | Juniper | 20.4-r3-s1 (including) | 20.4-r3-s1 (including) |
Junos | Juniper | 20.4-r3-s2 (including) | 20.4-r3-s2 (including) |
Junos | Juniper | 20.4-r3-s3 (including) | 20.4-r3-s3 (including) |
Junos | Juniper | 21.1 (including) | 21.1 (including) |
Junos | Juniper | 21.1-r1 (including) | 21.1-r1 (including) |
Junos | Juniper | 21.1-r1-s1 (including) | 21.1-r1-s1 (including) |
Junos | Juniper | 21.1-r2 (including) | 21.1-r2 (including) |
Junos | Juniper | 21.1-r2-s1 (including) | 21.1-r2-s1 (including) |
Junos | Juniper | 21.1-r2-s2 (including) | 21.1-r2-s2 (including) |
Junos | Juniper | 21.2 (including) | 21.2 (including) |
Junos | Juniper | 21.2-r1 (including) | 21.2-r1 (including) |
Junos | Juniper | 21.2-r1-s1 (including) | 21.2-r1-s1 (including) |
Junos | Juniper | 21.2-r1-s2 (including) | 21.2-r1-s2 (including) |
Junos | Juniper | 21.2-r2 (including) | 21.2-r2 (including) |
Junos | Juniper | 21.2-r2-s1 (including) | 21.2-r2-s1 (including) |
Junos | Juniper | 21.2-r2-s2 (including) | 21.2-r2-s2 (including) |
Junos | Juniper | 21.2-r3 (including) | 21.2-r3 (including) |
Junos | Juniper | 21.2-r3-s2 (including) | 21.2-r3-s2 (including) |
Junos | Juniper | 21.3 (including) | 21.3 (including) |
Junos | Juniper | 21.3-r1 (including) | 21.3-r1 (including) |
Junos | Juniper | 21.3-r1-s1 (including) | 21.3-r1-s1 (including) |
Junos | Juniper | 21.3-r1-s2 (including) | 21.3-r1-s2 (including) |
Junos | Juniper | 21.3-r2 (including) | 21.3-r2 (including) |
Junos | Juniper | 21.3-r2-s1 (including) | 21.3-r2-s1 (including) |
Junos | Juniper | 21.3-r2-s2 (including) | 21.3-r2-s2 (including) |
Junos | Juniper | 21.3-r3 (including) | 21.3-r3 (including) |
Input validation is a frequently-used technique for checking potentially dangerous inputs in order to ensure that the inputs are safe for processing within the code, or when communicating with other components. When software does not validate input properly, an attacker is able to craft the input in a form that is not expected by the rest of the application. This will lead to parts of the system receiving unintended input, which may result in altered control flow, arbitrary control of a resource, or arbitrary code execution. Input validation is not the only technique for processing input, however. Other techniques attempt to transform potentially-dangerous input into something safe, such as filtering (CWE-790) - which attempts to remove dangerous inputs - or encoding/escaping (CWE-116), which attempts to ensure that the input is not misinterpreted when it is included in output to another component. Other techniques exist as well (see CWE-138 for more examples.) Input validation can be applied to:
Data can be simple or structured. Structured data can be composed of many nested layers, composed of combinations of metadata and raw data, with other simple or structured data. Many properties of raw data or metadata may need to be validated upon entry into the code, such as:
Implied or derived properties of data must often be calculated or inferred by the code itself. Errors in deriving properties may be considered a contributing factor to improper input validation.
Note that “input validation” has very different meanings to different people, or within different classification schemes. Caution must be used when referencing this CWE entry or mapping to it. For example, some weaknesses might involve inadvertently giving control to an attacker over an input when they should not be able to provide an input at all, but sometimes this is referred to as input validation. Finally, it is important to emphasize that the distinctions between input validation and output escaping are often blurred, and developers must be careful to understand the difference, including how input validation is not always sufficient to prevent vulnerabilities, especially when less stringent data types must be supported, such as free-form text. Consider a SQL injection scenario in which a person’s last name is inserted into a query. The name “O’Reilly” would likely pass the validation step since it is a common last name in the English language. However, this valid name cannot be directly inserted into the database because it contains the “'” apostrophe character, which would need to be escaped or otherwise transformed. In this case, removing the apostrophe might reduce the risk of SQL injection, but it would produce incorrect behavior because the wrong name would be recorded.