CVE-2022-22172— Juniper Networks Junos OS 安全漏洞
一分钟漏洞结论
影响对象
Juniper Networks Junos OS
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Juniper Networks Junos OS是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Networks Junos OS存在安全漏洞，该漏洞源于第2层控制协议守护程序（l2cpd）内存泄漏。攻击者可利用该漏洞对目标系统执行DoS攻击。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service
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一、 漏洞 CVE-2022-22172 基础信息
漏洞信息
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Vulnerability Title
Junos OS and Junos OS Evolved: An l2cpd memory leak can occur when specific LLDP packets are received leading to a DoS
来源: CVE Program / CVE List V5
Vulnerability Description
A Missing Release of Memory after Effective Lifetime vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a memory leak. Continued exploitation can lead to memory exhaustion and thereby a Denial of Service (DoS). This issue occurs when specific LLDP packets are received. The impact of the l2cpd cores is that if any of the stp protocols (rstp, mstp or vstp) is used then stp re-converges and traffic loss will occur during that time. Also if any services depend on LLDP state (like PoE or VoIP device recognition) then these will also be affected. The memory utilization of the L2CPd process can be monitored with the following command: user@host> show system processes extensive | match l2cpd 1234 root 52 0 521M 43412K RUN 1 4:02 34.47% l2cpd This issue affects: Juniper Networks Junos OS 18.4 version 18.4R2-S4 and later versions prior to 18.4R2-S10. 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S2, 21.1R3; 21.2 versions prior to 21.2R2; Juniper Networks Junos OS Evolved All versions prior to 20.4R3-S2-EVO; 21.1 version 21.1R1-EVO and later versions; 21.2 versions prior to 21.2R2-EVO. This issue does not affect: Juniper Networks Junos OS 19.1 version 19.1R1 and later versions.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
来源: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Juniper Networks Junos OS是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Networks Junos OS存在安全漏洞，该漏洞源于第2层控制协议守护程序（l2cpd）内存泄漏。攻击者可利用该漏洞对目标系统执行DoS攻击。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Juniper Networks | Junos OS | unspecified ~ 18.4R2-S4 | - |
|
| Juniper Networks | Junos OS Evolved | unspecified ~ 20.4R3-S2-EVO | - |
|
二、漏洞 CVE-2022-22172 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2022-22172 厂商安全公告 (1)
-
https://kb.juniper.net/JSA11278 x_refsource_CONFIRM
同批安全公告 · Juniper Networks · 2022-01-19 · 共 27 条
| CVE-2022-22152 | 7.7 HIGH | Juniper Networks Contrail Service Orchestration 访问控制错误漏洞 |
| CVE-2022-22153 | 7.5 HIGH | Juniper Networks Junos OS 资源管理错误漏洞 |
| CVE-2022-22180 | 7.5 HIGH | Juniper Networks Junos OS 代码问题漏洞 |
| CVE-2022-22178 | 7.5 HIGH | Juniper Networks Junos OS 安全漏洞 |
| CVE-2022-22175 | 7.5 HIGH | Juniper Networks Junos OS 安全漏洞 |
| CVE-2022-22174 | 7.5 HIGH | Juniper Networks Junos OS 安全漏洞 |
| CVE-2022-22173 | 7.5 HIGH | Juniper Networks Junos OS 安全漏洞 |
| CVE-2022-22171 | 7.5 HIGH | Juniper Networks Junos OS 代码问题漏洞 |
| CVE-2022-22170 | 7.5 HIGH | Juniper Networks Junos OS 代码问题漏洞 |
| CVE-2022-22159 | 7.5 HIGH | Juniper Networks Junos OS 资源管理错误漏洞 |
| CVE-2022-22161 | 7.5 HIGH | Juniper Networks Junos OS 资源管理错误漏洞 |
| CVE-2022-22163 | 7.4 HIGH | Juniper Networks Junos OS 输入验证错误漏洞 |
| CVE-2022-22176 | 7.4 HIGH | Juniper Networks Junos OS 输入验证错误漏洞 |
| CVE-2022-22162 | 7.3 HIGH | Juniper Networks Junos OS 信息泄露漏洞 |
| CVE-2022-22167 | 7.2 HIGH | Juniper Networks Junos OS 安全特征问题漏洞 |
| CVE-2022-22157 | 7.2 HIGH | Juniper Networks Junos OS 安全特征问题漏洞 |
| CVE-2022-22154 | 6.8 MEDIUM | Juniper Networks Junos OS 安全漏洞 |
| CVE-2022-22160 | 6.5 MEDIUM | Juniper Networks Junos OS 代码问题漏洞 |
| CVE-2022-22168 | 6.5 MEDIUM | Juniper Networks Junos OS 输入验证错误漏洞 |
| CVE-2022-22156 | 6.5 MEDIUM | Juniper Networks Junos OS 信任管理问题漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2022-22172
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