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CVE-2021-31354— Junos OS and Junos OS Evolved: A vulnerability in the Juniper Agile License Client may allow an attacker to perform Remote Code Execution (RCE)

CVSS 7.1 · High EPSS 0.28% · P51
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I. Basic Information for CVE-2021-31354

Vulnerability Information
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Vulnerability Title
Junos OS and Junos OS Evolved: A vulnerability in the Juniper Agile License Client may allow an attacker to perform Remote Code Execution (RCE)
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Out Of Bounds (OOB) access vulnerability in the handling of responses by a Juniper Agile License (JAL) Client in Juniper Networks Junos OS and Junos OS Evolved, configured in Network Mode (to use Juniper Agile License Manager) may allow an attacker to cause a partial Denial of Service (DoS), or lead to remote code execution (RCE). The vulnerability exists in the packet parsing logic on the client that processes the response from the server using a custom protocol. An attacker with control of a JAL License Manager, or with access to the local broadcast domain, may be able to spoof a new JAL License Manager and/or craft a response to the Junos OS License Client, leading to exploitation of this vulnerability. This issue only affects Junos systems configured in Network Mode. Systems that are configured in Standalone Mode (the default mode of operation for all systems) are not vulnerable to this issue. This issue affects: Juniper Networks Junos OS: 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R3-S3; 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 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos OS Evolved: version 20.1R1-EVO and later versions, prior to 21.2R2-EVO. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
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 存在缓冲区错误漏洞，该漏洞源于瞻博网络 Junos OS 和 Junos OS Evolved 中的瞻博网络敏捷许可证 (JAL) 客户端处理响应中的越界 (OOB) 访问漏洞，配置为网络模式（以使用瞻博网络敏捷许可证管理器）可能允许攻击者导致部分拒绝服务
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Juniper NetworksJunos OS unspecified ~ 19.2R1 -
Juniper NetworksJunos OS Evolved 20.1R1-EVO ~ unspecified -

II. Public POCs for CVE-2021-31354

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III. Intelligence Information for CVE-2021-31354

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Same Patch Batch · Juniper Networks · 2021-10-19 · 42 CVEs total

CVE-2021-313499.8 CRITICALSession Smart Router: Authentication Bypass Vulnerability
CVE-2021-313858.8 HIGHJunos OS: J-Web: A path traversal vulnerability allows an authenticated attacker to elevat
CVE-2021-313728.8 HIGHJunos OS: J-Web allows a locally authenticated attacker to escalate their privileges to ro
CVE-2021-313558.0 HIGHJunos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal
CVE-2021-313738.0 HIGHJunos OS: SRX Series: Persistent XSS vulnerability in J-Web
CVE-2021-313567.8 HIGHJunos OS Evolved: Multiple shell-injection vulnerabilities in EVO UI wrapper scripts
CVE-2021-313577.8 HIGHJunos OS Evolved: shell-injection vulnerabilities in evo_tcpdump UI wrapper script
CVE-2021-313587.8 HIGHJunos OS Evolved: shell-injection vulnerabilities in evo_sftp UI wrapper script
CVE-2021-313597.8 HIGHJunos OS and Junos OS Evolved: Local Privilege Escalation vulnerability
CVE-2021-313507.5 HIGHJunos OS and Junos OS Evolved: Privilege escalation vulnerability in Juniper Extension Too
CVE-2021-313517.5 HIGHJunos OS: MX Series: Receipt of specific packet on MS-MPC/MS-MIC causes line card reset
CVE-2021-313797.5 HIGHJunos OS: MX Series: MPC 7/8/9/10/11 cards with MAP-E: PFE halts when an attacker sends ma
CVE-2021-313537.5 HIGHJunos OS and Junos OS Evolved: RPD core upon receipt of specific BGP update
CVE-2021-313767.5 HIGHJunos OS: ACX Series: Packet Forwarding Engine manager (FXPC) process crashes when process
CVE-2021-313747.5 HIGHJunos OS and Junos OS Evolved: RPD crash while processing a specially crafted BGP UPDATE o
CVE-2021-313837.5 HIGHJunos OS and Junos OS Evolved: In Point to MultiPoint (P2MP) scenarios receipt of various
CVE-2021-02997.5 HIGHJunos OS: Kernel crash (vmcore) upon receipt of a malformed IPv6 packet
CVE-2021-313687.5 HIGHJunos OS: EX2300 Series, EX3400 Series, and ACX710 might become unresponsive if the out-of
CVE-2021-02967.4 HIGHCTPView: HSTS not being enforced on CTPView server.
CVE-2021-313847.2 HIGHJunos OS: SRX Series: Under a specific device configuration an attacker can access the dev

Showing top 20 of 42 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-125

V. Comments for CVE-2021-31354

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