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CVE-2021-31349— Session Smart Router: Authentication Bypass Vulnerability

Quick assessment

Affected
Juniper Networks 128 Technology Session Smart Router
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

128 Technology Session Smart Router是一个路由器。 128 Technology Session Smart Router 中存在授权问题漏洞，该漏洞源于产品在处理身份验证请求时发生错误。攻击者可通过该漏洞绕过认证并使用root权限执行任意系统命令。以下产品及版本受到影响：128 Technology Session Smart Router 4.4, 5.0.1 版本。

CVSS 9.8 · Critical EPSS 1.72% · P77

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-31349

Vulnerability Information
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Vulnerability Title
Session Smart Router: Authentication Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
The usage of an internal HTTP header created an authentication bypass vulnerability (CWE-287), allowing an attacker to view internal files, change settings, manipulate services and execute arbitrary code. This issue affects all Juniper Networks 128 Technology Session Smart Router versions prior to 4.5.11, and all versions of 5.0 up to and including 5.0.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
128 Technology Session Smart Router 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
128 Technology Session Smart Router是一个路由器。 128 Technology Session Smart Router 中存在授权问题漏洞，该漏洞源于产品在处理身份验证请求时发生错误。攻击者可通过该漏洞绕过认证并使用root权限执行任意系统命令。以下产品及版本受到影响：128 Technology Session Smart Router 4.4, 5.0.1 版本。
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

Vendor Product Affected Versions CPE Subscribe
Juniper Networks 128 Technology Session Smart Router unspecified ~ 4.5.11 -

II. Public POCs for CVE-2021-31349

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III. Intelligence Information for CVE-2021-31349

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Vendor Advisories for CVE-2021-31349 (1)

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

CVE-2021-31385 8.8 HIGH Junos OS: J-Web: A path traversal vulnerability allows an authenticated attacker to elevat
CVE-2021-31372 8.8 HIGH Junos OS: J-Web allows a locally authenticated attacker to escalate their privileges to ro
CVE-2021-31373 8.0 HIGH Junos OS: SRX Series: Persistent XSS vulnerability in J-Web
CVE-2021-31355 8.0 HIGH Junos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal
CVE-2021-31356 7.8 HIGH Junos OS Evolved: Multiple shell-injection vulnerabilities in EVO UI wrapper scripts
CVE-2021-31359 7.8 HIGH Junos OS and Junos OS Evolved: Local Privilege Escalation vulnerability
CVE-2021-31358 7.8 HIGH Junos OS Evolved: shell-injection vulnerabilities in evo_sftp UI wrapper script
CVE-2021-31357 7.8 HIGH Junos OS Evolved: shell-injection vulnerabilities in evo_tcpdump UI wrapper script
CVE-2021-31379 7.5 HIGH Junos OS: MX Series: MPC 7/8/9/10/11 cards with MAP-E: PFE halts when an attacker sends ma
CVE-2021-31376 7.5 HIGH Junos OS: ACX Series: Packet Forwarding Engine manager (FXPC) process crashes when process
CVE-2021-31353 7.5 HIGH Junos OS and Junos OS Evolved: RPD core upon receipt of specific BGP update
CVE-2021-31374 7.5 HIGH Junos OS and Junos OS Evolved: RPD crash while processing a specially crafted BGP UPDATE o
CVE-2021-31351 7.5 HIGH Junos OS: MX Series: Receipt of specific packet on MS-MPC/MS-MIC causes line card reset
CVE-2021-31350 7.5 HIGH Junos OS and Junos OS Evolved: Privilege escalation vulnerability in Juniper Extension Too
CVE-2021-31383 7.5 HIGH Junos OS and Junos OS Evolved: In Point to MultiPoint (P2MP) scenarios receipt of various
CVE-2021-0299 7.5 HIGH Junos OS: Kernel crash (vmcore) upon receipt of a malformed IPv6 packet
CVE-2021-31368 7.5 HIGH Junos OS: EX2300 Series, EX3400 Series, and ACX710 might become unresponsive if the out-of
CVE-2021-0296 7.4 HIGH CTPView: HSTS not being enforced on CTPView server.
CVE-2021-31384 7.2 HIGH Junos OS: SRX Series: Under a specific device configuration an attacker can access the dev
CVE-2021-31375 7.2 HIGH Junos OS: Receipt of a specific BGP update may cause RPKI policy-checks to be bypassed

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

IV. Related Vulnerabilities

Same vendor: Juniper Networks
Same weakness: CWE-287

V. Comments for CVE-2021-31349

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