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CVE-2024-21597— Junos OS: MX Series: In an AF scenario traffic can bypass configured lo0 firewall filters

Quick assessment

Affected
Juniper Networks Junos OS
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.

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，该漏洞源于的数据包转发引擎 (PFE) 中存在资源暴露于错误领域的漏洞。允许未经身份验证的基于网络的攻击者绕过预期的访问限制。

CVSS 5.3 · Medium EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-21597

Vulnerability Information
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Vulnerability Title
Junos OS: MX Series: In an AF scenario traffic can bypass configured lo0 firewall filters
Source: CVE Program / CVE List V5
Vulnerability Description
An Exposure of Resource to Wrong Sphere vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass the intended access restrictions. In an Abstracted Fabric (AF) scenario if routing-instances (RI) are configured, specific valid traffic destined to the device can bypass the configured lo0 firewall filters as it's received in the wrong RI context. This issue affects Juniper Networks Junos OS on MX Series: * All versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S3; * 21.4 versions earlier than 21.4R3-S5; * 22.1 versions earlier than 22.1R3; * 22.2 versions earlier than 22.2R3; * 22.3 versions earlier than 22.3R2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
将资源暴露给错误范围
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 安全漏洞
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 存在安全漏洞，该漏洞源于的数据包转发引擎 (PFE) 中存在资源暴露于错误领域的漏洞。允许未经身份验证的基于网络的攻击者绕过预期的访问限制。
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 Junos OS 0 ~ 20.4R3-S9 -

II. Public POCs for CVE-2024-21597

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III. Intelligence Information for CVE-2024-21597

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Other References for CVE-2024-21597 (2)

Same Patch Batch · Juniper Networks · 2024-01-12 · 23 CVEs total

CVE-2024-21591 9.8 CRITICAL Junos OS: SRX Series and EX Series: Security Vulnerability in J-web allows a preAuth Remot
CVE-2024-21616 7.5 HIGH Junos OS: MX Series and SRX Series: Processing of a specific SIP packet causes NAT IP allo
CVE-2024-21614 7.5 HIGH Junos OS and Junos OS Evolved: A specific query via DREND causes rpd crash
CVE-2024-21612 7.5 HIGH Junos OS Evolved: Specific TCP traffic causes OFP core and restart of RE
CVE-2024-21611 7.5 HIGH Junos OS and Junos OS Evolved: In a jflow scenario continuous route churn will cause a mem
CVE-2024-21606 7.5 HIGH Junos OS: SRX Series: When "tcp-encap" is configured and specific packets are received flo
CVE-2024-21604 7.5 HIGH Junos OS Evolved: A high rate of specific traffic will cause a complete system outage
CVE-2024-21602 7.5 HIGH Junos OS Evolved: ACX7024, ACX7100-32C and ACX7100-48L: Traffic stops when a specific IPv4
CVE-2024-21595 7.5 HIGH Junos OS: EX4100, EX4400, EX4600, QFX5000 Series: A high rate of specific ICMP traffic wil
CVE-2024-21589 7.4 HIGH Paragon Active Assurance Control Center: Information disclosure vulnerability
CVE-2023-36842 6.5 MEDIUM Junos OS: jdhcpd will hang on receiving a specific DHCP packet
CVE-2024-21617 6.5 MEDIUM Junos OS: BGP flap on NSR-enabled devices causes memory leak
CVE-2024-21587 6.5 MEDIUM Junos OS: MX Series: Memory leak in bbe-smgd process if BFD liveness detection for DHCP su
CVE-2024-21599 6.5 MEDIUM Junos OS: MX Series: MPC3E memory leak with PTP configuration
CVE-2024-21600 6.5 MEDIUM Junos OS: PTX Series: In an FTI scenario MPLS packets hitting reject next-hop will cause a
CVE-2024-21603 6.5 MEDIUM Junos OS: MX Series: Gathering statistics in a scaled SCU/DCU configuration will lead to a
CVE-2024-21613 6.5 MEDIUM Junos OS and Junos OS Evolved: A link flap causes patroot memory leak which leads to rpd c
CVE-2024-21601 5.9 MEDIUM Junos OS: SRX Series: Due to an error in processing TCP events flowd will crash
CVE-2024-21585 5.9 MEDIUM Junos OS and Junos OS Evolved: BGP session flaps on NSR-enabled devices can cause rpd cras
CVE-2024-21594 5.5 MEDIUM Junos OS: SRX 5000 Series: Repeated execution of a specific CLI command causes a flowd cra

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-668

V. Comments for CVE-2024-21597

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