CVE-2021-31360— Juniper Networks Junos OS 安全漏洞
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一、 漏洞 CVE-2021-31360 基础信息
漏洞信息
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Vulnerability Title
Junos OS and Junos OS Evolved: Denial of Service vulnerability in local file processing
来源: CVE Program / CVE List V5
Vulnerability Description
An improper privilege management vulnerability in the Juniper Networks Junos OS and Junos OS Evolved command-line interpreter (CLI) allows a low-privileged user to overwrite local files as root, possibly leading to a system integrity issue or Denial of Service (DoS). Depending on the files overwritten, exploitation of this vulnerability could lead to a sustained Denial of Service (DoS) condition, requiring manual user intervention to recover. Systems are only vulnerable if jdhcpd is running, which can be confirmed via the 'show system processes' command. For example: root@host# run show system processes extensive | match dhcp 26537 root -16 0 97568K 13692K RUN 0 0:01 3.71% jdhcpd This issue affects: Juniper Networks Junos OS: All versions, including the following supported releases: 15.1 versions prior to 15.1R7-S10; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2. Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-S3-EVO; All versions of 21.1-EVO.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
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，该漏洞源于瞻博网络 Junos OS 和 Junos OS Evolved 命令行解释器 (CLI) 中的权限管理不当漏洞允许低权限用户以 root 用户身份覆盖本地文件，这可能会导致系统完整性问题或拒绝服务 (DoS)。根据覆盖的文件，利用此
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 | 15.1 ~ 15.1R7-S10 | - | |
| Juniper Networks | Junos OS Evolved | unspecified ~ 20.4R2-S3-EVO | - |
二、漏洞 CVE-2021-31360 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2021-31360 厂商安全公告 (1)
- https://kb.juniper.net/JSA11222x_refsource_CONFIRM
同批安全公告 · Juniper Networks · 2021-10-19 · 共 42 条
| CVE-2021-31349 | 9.8 CRITICAL | 128 Technology Session Smart Router 授权问题漏洞 |
| CVE-2021-31385 | 8.8 HIGH | Juniper Networks Junos OS 路径遍历漏洞 |
| CVE-2021-31372 | 8.8 HIGH | Juniper Networks Junos OS 输入验证错误漏洞 |
| CVE-2021-31355 | 8.0 HIGH | Juniper Networks Junos OS 跨站脚本漏洞 |
| CVE-2021-31373 | 8.0 HIGH | Juniper Networks Junos OS 跨站脚本漏洞 |
| CVE-2021-31356 | 7.8 HIGH | Juniper Networks Junos OS 操作系统操作系统命令注入漏洞 |
| CVE-2021-31357 | 7.8 HIGH | Juniper Networks Junos OS 操作系统命令注入漏洞 |
| CVE-2021-31358 | 7.8 HIGH | Juniper Networks Junos OS 操作系统操作系统命令注入漏洞 |
| CVE-2021-31359 | 7.8 HIGH | Juniper Networks Junos OS 权限许可和访问控制问题漏洞 |
| CVE-2021-31350 | 7.5 HIGH | Juniper Networks Junos OS 安全漏洞 |
| CVE-2021-31351 | 7.5 HIGH | Juniper Networks Junos OS 代码问题漏洞 |
| CVE-2021-31379 | 7.5 HIGH | Juniper Networks Junos OS 安全漏洞 |
| CVE-2021-31353 | 7.5 HIGH | Juniper Networks Junos OS安全漏洞 |
| CVE-2021-31376 | 7.5 HIGH | Juniper Networks Junos OS 输入验证错误漏洞 |
| CVE-2021-31374 | 7.5 HIGH | Juniper Networks Junos OS和Junos OS Evolved 缓冲区错误漏洞 |
| CVE-2021-31383 | 7.5 HIGH | Juniper Networks Junos OS和Junos OS Evolved 缓冲区错误漏洞 |
| CVE-2021-0299 | 7.5 HIGH | Juniper Networks Junos OS 安全漏洞 |
| CVE-2021-31368 | 7.5 HIGH | Juniper Networks Junos OS 资源管理错误漏洞 |
| CVE-2021-0296 | 7.4 HIGH | Juniper Networks CtpView输入验证错误漏洞 |
| CVE-2021-31384 | 7.2 HIGH | Juniper Networks Junos OS 安全漏洞 |
显示前 20 条，共 42 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-31360
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