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CVE-2024-39531— Junos OS Evolved: ACX 7000 Series: Protocol specific DDoS configuration affects other protocols

Quick assessment

Affected
Juniper Networks Junos OS Evolved
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 Evolved是美国瞻博网络（Juniper Networks）公司的Junos OS 的升级版系统。 Juniper Networks Junos OS Evolved存在安全漏洞，该漏洞源于存在一个值处理不当漏洞，允许基于网络的未经身份验证的攻击者造成拒绝服务(DoS)。

CVSS 7.5 · High EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-39531

Vulnerability Information
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Vulnerability Title
Junos OS Evolved: ACX 7000 Series: Protocol specific DDoS configuration affects other protocols
Source: CVE Program / CVE List V5
Vulnerability Description
An Improper Handling of Values vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX 7000 Series allows a network-based, unauthenticated attacker to cause a Denial-of-Service (DoS). If a value is configured for DDoS bandwidth or burst parameters for any protocol in a queue, all protocols which share the same queue will have their bandwidth or burst value changed to the new value. If, for example, OSPF was configured with a certain bandwidth value, ISIS would also be limited to this value. So inadvertently either the control plane is open for a high level of specific traffic which was supposed to be limited to a lower value, or the limit for a certain protocol is so low that chances to succeed with a volumetric DoS attack are significantly increased.  This issue affects Junos OS Evolved on ACX 7000 Series: * All versions before 21.4R3-S7-EVO, * 22.1 versions before 22.1R3-S6-EVO,  * 22.2 versions before 22.2R3-S3-EVO, * 22.3 versions before 22.3R3-S3-EVO,  * 22.4 versions before 22.4R3-S2-EVO, * 23.2 versions before 23.2R2-EVO, * 23.4 versions before 23.4R1-S1-EVO, 23.4R2-EVO.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
值处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS Evolved 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS Evolved是美国瞻博网络（Juniper Networks）公司的Junos OS 的升级版系统。 Juniper Networks Junos OS Evolved存在安全漏洞，该漏洞源于存在一个值处理不当漏洞，允许基于网络的未经身份验证的攻击者造成拒绝服务(DoS)。
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 Evolved 0 ~ 21.4R3-S7-EVO -

II. Public POCs for CVE-2024-39531

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III. Intelligence Information for CVE-2024-39531

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Same Patch Batch · Juniper Networks · 2024-07-11 · 29 CVEs total

CVE-2024-39520 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39521 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39522 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39523 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39524 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39542 7.5 HIGH Junos OS and Junos OS Evolved: A malformed CFM packet or specific transit traffic leads to
CVE-2024-39540 7.5 HIGH Junos OS: SRX Series, and MX Series with SPC3: Specific valid TCP traffic can cause a pfe
CVE-2024-39545 7.5 HIGH Junos OS: SRX Series, MX Series with SPC3 and NFX350: When VPN tunnels parameters are not
CVE-2024-39548 7.5 HIGH Junos OS Evolved: Receipt of specific packets in the aftmand process will lead to a memory
CVE-2024-39549 7.5 HIGH Junos OS and Junos OS Evolved: Receipt of malformed BGP path attributes leads to a memory
CVE-2024-39551 7.5 HIGH Junos OS: SRX Series and MX Series with SPC3 and MS-MPC/MIC: Receipt of specific packets i
CVE-2024-39552 7.5 HIGH Junos OS and Junos OS Evolved: Malformed BGP UPDATE causes RPD crash
CVE-2024-39530 7.5 HIGH Junos OS: Attempting to access specific sensors on platforms not supporting these will lea
CVE-2024-39529 7.5 HIGH Junos OS: SRX Series: If DNS traceoptions are configured in a DGA or tunnel detection scen
CVE-2024-39546 7.3 HIGH Junos OS Evolved: Local low-privilege user can gain root permissions leading to privilege
CVE-2024-39550 6.5 MEDIUM Junos OS: MX Series with SPC3 line card: Port flaps causes rtlogd memory leak leading to D
CVE-2024-39519 6.5 MEDIUM Junos OS Evolved: ACX 7000 Series: Multicast traffic is looped in a multihoming EVPN MPLS
CVE-2024-39543 6.5 MEDIUM Junos OS and Junos OS Evolved: Receipt of a large RPKI-RTR PDU packet can cause rpd to cra
CVE-2024-39553 6.5 MEDIUM Junos OS Evolved: Receipt of arbitrary data when sampling service is enabled, leads to par
CVE-2024-39541 6.5 MEDIUM Junos OS and Junos OS Evolved: Inconsistent information in the TE database can lead to an

Showing top 20 of 29 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS Evolved
Same vendor: Juniper Networks
Same weakness: CWE-229

V. Comments for CVE-2024-39531

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