CVE-2024-21616— Junos OS: MX Series and SRX Series: Processing of a specific SIP packet causes NAT IP allocation to fail
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) 中输入语法正确性验证不当的漏洞允许未经身份验证的网络攻击者造成拒绝服务 (DoS)。
Possible ATT&CK Techniques 2 AI
T1210 · Exploitation of Remote Services T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-21616
Vulnerability Information
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Vulnerability Title
Junos OS: MX Series and SRX Series: Processing of a specific SIP packet causes NAT IP allocation to fail
Source: CVE Program / CVE List V5
Vulnerability Description
An Improper Validation of Syntactic Correctness of Input vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).
On all Junos OS MX Series and SRX Series platforms, when SIP ALG is enabled, and a specific SIP packet is received and processed, NAT IP allocation fails for genuine traffic, which causes Denial of Service (DoS). Continuous receipt of this specific SIP ALG packet will cause a sustained DoS condition.
NAT IP usage can be monitored by running the following command.
user@srx> show security nat resource-usage source-pool <source_pool_name>
Pool name: source_pool_name
..
Address Factor-index Port-range Used Avail Total Usage
X.X.X.X
0 Single Ports 50258 52342 62464 96% <<<<<
- Alg Ports 0 2048 2048 0%
This issue affects:
Juniper Networks Junos OS on MX Series and SRX Series
* All versions earlier than 21.2R3-S6;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3-S4;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S1;
* 22.4 versions earlier than 22.4R2-S2, 22.4R3;
* 23.2 versions earlier than 23.2R1-S1, 23.2R2.
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
CWE-1286
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) 中输入语法正确性验证不当的漏洞允许未经身份验证的网络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 | 0 ~ 21.2R3-S6 | - |
|
II. Public POCs for CVE-2024-21616
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2024-21616 (1)
-
Common Vulnerability Scoring System Version 4.0 Calculator technical-description
Other References for CVE-2024-21616 (1)
-
https://supportportal.juniper.net/JSA75757 vendor-advisory
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-2024-21614 | 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 |
| CVE-2024-21597 | 5.3 MEDIUM | Junos OS: MX Series: In an AF scenario traffic can bypass configured lo0 firewall filters |
Showing top 20 of 23 CVEs. View all on vendor page → →
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V. Comments for CVE-2024-21616
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