Juniper Networks Junos OS拒绝服务漏洞
CVE编号
CVE-2021-0207利用情况
暂无补丁情况
N/A披露时间
2021-01-16漏洞描述
An improper interpretation conflict of certain data between certain software components within the Juniper Networks Junos OS devices does not allow certain traffic to pass through the device upon receipt from an ingress interface filtering certain specific types of traffic which is then being redirected to an egress interface on a different VLAN. This causes a Denial of Service (DoS) to those clients sending these particular types of traffic. Such traffic being sent by a client may appear genuine, but is non-standard in nature and should be considered as potentially malicious, and can be targeted to the device, or destined through it for the issue to occur. This issues affects IPv4 and IPv6 traffic. An indicator of compromise may be found by checking log files. You may find that traffic on the input interface has 100% of traffic flowing into the device, yet the egress interface shows 0 pps leaving the device. For example: [show interfaces "interface" statistics detail] Output between two interfaces would reveal something similar to: Ingress, first interface: -------------------- Interface Link Input packets (pps) Output packets (pps) et-0/0/0 Up 9999999999 (9999) 1 (0) -------------------- Egress, second interface: -------------------- Interface Link Input packets (pps) Output packets (pps) et-0/0/1 Up 0 (0) 9999999999 (0) -------------------- Dropped packets will not show up in DDoS monitoring/protection counters as issue is not caused by anti-DDoS protection mechanisms. This issue affects: Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S7 on NFX250, QFX5K Series, EX4600; 17.4 versions prior to 17.4R2-S11, 17.4R3-S3 on NFX250, QFX5K Series, EX4600; 18.1 versions prior to 18.1R3-S9 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4600; 18.2 versions prior to 18.2R3-S3 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600; 18.3 versions prior to 18.3R3-S1 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 19.1 versions prior to 19.1R1-S5, 19.1R2-S1, 19.1R3 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 19.2 versions prior to 19.2R1-S5, 19.2R2 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 19.3 versions prior to 19.3R2-S3, 19.3R3 on NFX250, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series; 19.4 versions prior to 19.4R1-S2, 19.4R2 on NFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series. This issue does not affect Junos OS releases prior to 17.2R2.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://kb.juniper.net/JSA11097 |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | juniper | junos | 18.2 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 17.3 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 17.4 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.1 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.2 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.3 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 18.4 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 19.1 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 19.2 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 19.3 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | juniper | junos | 19.4 | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ex2300 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ex3400 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ex4300 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | ex4600 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | nfx250 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | nfx350 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | qfx5100 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | qfx5110 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | qfx5120 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | qfx5130 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | qfx5200 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | qfx5210 | - | - | |||||
| 运行在以下环境 | |||||||||
| 硬件 | juniper | qfx5220 | - | - | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 无
- 完整性 无
| CWE-ID | 漏洞类型 |
| CWE-436 | 解释冲突 |
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