CVE-2024-30391— Junos OS: MX Series with SPC3, and SRX Series: When IPsec authentication is configured with "hmac-sha-384" and "hmac-sha-512" no authentication of traffic is performed
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，该漏洞源于数据包转发引擎PFE存在安全漏洞。攻击者可利用该漏洞对对设备的完整性或可用性造成影响。受影响的产品和版本：Juniper Networks Junos OS 20.4R3-S7之前版本，21.1R3之前版本，21.2R2-S1之前版本，
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2024-30391
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Junos OS: MX Series with SPC3, and SRX Series: When IPsec authentication is configured with "hmac-sha-384" and "hmac-sha-512" no authentication of traffic is performed
Source: CVE Program / CVE List V5
Vulnerability Description
A Missing Authentication for Critical Function vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series with SPC3, and SRX Series allows an unauthenticated network-based attacker to cause limited impact to the integrity or availability of the device.
If a device is configured with IPsec authentication algorithm hmac-sha-384 or hmac-sha-512, tunnels are established normally but for traffic traversing the tunnel no authentication information is sent with the encrypted data on egress, and no authentication information is expected on ingress. So if the peer is an unaffected device transit traffic is going to fail in both directions. If the peer is an also affected device transit traffic works, but without authentication, and configuration and CLI operational commands indicate authentication is performed.
This issue affects Junos OS:
* All versions before 20.4R3-S7,
* 21.1 versions before 21.1R3,
* 21.2 versions before 21.2R2-S1, 21.2R3,
* 21.3 versions before 21.3R1-S2, 21.3R2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
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，该漏洞源于数据包转发引擎PFE存在安全漏洞。攻击者可利用该漏洞对对设备的完整性或可用性造成影响。受影响的产品和版本：Juniper Networks Junos OS 20.4R3-S7之前版本，21.1R3之前版本，21.2R2-S1之前版本，
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 | Junos OS | 0 ~ 20.4R3-S7 | - |
|
II. Public POCs for CVE-2024-30391
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2024-30391
请登录查看更多情报信息。
Other References for CVE-2024-30391 (2)
-
Common Vulnerability Scoring System Version 4.0 Calculator technical-description
-
Common Vulnerability Scoring System Version 4.0 Calculator technical-description
Other References for CVE-2024-30391 (1)
-
http://supportportal.juniper.net/JSA79188 vendor-advisory
Same Patch Batch · Juniper Networks · 2024-04-12 · 29 CVEs total
| CVE-2024-30381 | 8.4 HIGH | Paragon Active Assurance: probe_serviced exposes internal objects to local users |
| CVE-2024-30398 | 7.5 HIGH | Junos OS: SRX4600 Series - A high amount of specific traffic causes packet drops and an ev |
| CVE-2024-21598 | 7.5 HIGH | Junos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to |
| CVE-2024-30397 | 7.5 HIGH | Junos OS: An invalid certificate causes a Denial of Service in the Internet Key Exchange ( |
| CVE-2024-30382 | 7.5 HIGH | Junos OS and Junos OS Evolved: RPD crash when CoS-based forwarding (CBF) policy is configu |
| CVE-2024-30392 | 7.5 HIGH | Junos OS: MX Series with SPC3 and MS-MPC/-MIC: When URL filtering is enabled and a specifi |
| CVE-2024-30394 | 7.5 HIGH | Junos OS and Junos OS Evolved: A specific EVPN type-5 route causes rpd crash |
| CVE-2024-30395 | 7.5 HIGH | Junos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to |
| CVE-2024-30405 | 7.5 HIGH | Junos OS: SRX 5000 Series with SPC2: Processing of specific crafted packets when ALG is en |
| CVE-2024-30403 | 6.5 MEDIUM | Junos OS Evolved: When MAC learning happens, and an interface gets flapped, the PFE crashe |
| CVE-2024-30387 | 6.5 MEDIUM | Junos OS: ACX5448 & ACX710: Due to interface flaps the PFE process can crash |
| CVE-2024-30388 | 6.5 MEDIUM | Junos OS: QFX5000 Series and EX Series: Specific malformed LACP packets will cause flaps |
| CVE-2024-21618 | 6.5 MEDIUM | Junos OS and Junos OS Evolved: When LLDP is enabled and a malformed LLDP packet is receive |
| CVE-2024-21609 | 6.5 MEDIUM | Junos OS: MX Series with SPC3, and SRX Series: If specific IPsec parameters are negotiated |
| CVE-2024-21605 | 6.5 MEDIUM | Junos OS: SRX 300 Series: Specific link local traffic causes a control plane overload |
| CVE-2024-21593 | 6.5 MEDIUM | Junos OS: MX Series with MPC10, MPC11, LC9600, and MX304: A specific MPLS packet will caus |
| CVE-2024-30401 | 5.9 MEDIUM | Junos OS: MX Series and EX9200-15C: Stack-based buffer overflow in aftman |
| CVE-2024-30402 | 5.9 MEDIUM | Junos OS and Junos OS Evolved: The l2ald crashes on receiving telemetry messages from a sp |
| CVE-2024-30410 | 5.8 MEDIUM | Junos OS: EX4300 Series: Loopback filter not blocking traffic despite having discard term. |
| CVE-2024-30389 | 5.8 MEDIUM | Junos OS: EX4300 Series: Firewall filter not blocking egress traffic |
Showing top 20 of 29 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Junos OS
-
CVE-2026-57054
Junos OS: MX Series: Web filtering doesn't block specificall -
CVE-2026-57032
Junos OS: EX Series: Subscribing to an unsupported telemetry -
CVE-2026-57031
Junos OS: MX Series: For subscribers configured on static in -
CVE-2026-57030
Junos OS: SRX Series: Flow sessions are not getting cleared -
CVE-2026-57027
Junos OS: EX4100 Series, EX4400: With sFlow configured in a
Same vendor: Juniper Networks
-
CVE-2026-57054
Junos OS: MX Series: Web filtering doesn't block specificall -
CVE-2026-57032
Junos OS: EX Series: Subscribing to an unsupported telemetry -
CVE-2026-57031
Junos OS: MX Series: For subscribers configured on static in -
CVE-2026-57030
Junos OS: SRX Series: Flow sessions are not getting cleared -
CVE-2026-57029
Junos OS Evolved: QFX Series: When sFlow collector reachabil
Same weakness: CWE-306
-
CVE-2026-105170
kishor-23 food-waste-management-system Admin Signup signup.p -
CVE-2026-105207
ZITADEL before 4.17.3 Account Takeover via External IdP Link -
CVE-2026-105115
OpenAM before 16.1.3 Unauthenticated Arbitrary Class Instant -
CVE-2026-105105
Unauthenticated ZeroMQ command/telemetry bus in AIT-Core all -
CVE-2026-105049
Zilliz Attu<3.0.0 Playground未授权访问漏洞
V. Comments for CVE-2024-30391
No comments yet