CVE-2020-1627— Junos OS: vMX and MX150: Denial of Service vulnerability in packet processing
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。Junos OS Evolved是Junos OS的升级版。 Juniper Networks Junos OS（vMX和MX150）中存在安全漏洞。攻击者可通过持续发送相同的数据包利用该漏洞造成拒绝服务（崩溃）。以下产品及版本受到影响：Juniper Networks Junos OS 18.1版本，18.2
Possible ATT&CK Techniques 1 AI
T1498 · Network Denial of Service
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I. Basic Information for CVE-2020-1627
Vulnerability Information
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Vulnerability Title
Junos OS: vMX and MX150: Denial of Service vulnerability in packet processing
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in Juniper Networks Junos OS on vMX and MX150 devices may allow an attacker to cause a Denial of Service (DoS) by sending specific packets requiring special processing in microcode that the flow cache can't handle, causing the riot forwarding daemon to crash. By continuously sending the same specific packets, an attacker can repeatedly crash the riot process causing a sustained Denial of Service. Flow cache is specific to vMX based products and the MX150, and is enabled by default in performance mode. This issue can only be triggered by traffic destined to the device. Transit traffic will not cause the riot daemon to crash. When the issue occurs, a core dump and riot log file entry are generated. For example: /var/crash/core.J-UKERN.mpc0.1557255993.3864.gz /home/pfe/RIOT logs: fpc0 riot[1888]: PANIC in lu_reorder_send_packet_postproc(): fpc0 riot[6655]: PANIC in lu_reorder_send_packet_postproc(): This issue affects Juniper Networks Junos OS: 18.1 versions prior to 18.1R3 on vMX and MX150; 18.2 versions prior to 18.2R3 on vMX and MX150; 18.2X75 versions prior to 18.2X75-D60 on vMX and MX150; 18.3 versions prior to 18.3R3 on vMX and MX150; 18.4 versions prior to 18.4R2 on vMX and MX150; 19.1 versions prior to 19.1R2 on vMX and MX150. This issue does not affect Junos OS versions prior to 18.1R1.
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
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 输入验证错误漏洞
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。Junos OS Evolved是Junos OS的升级版。 Juniper Networks Junos OS（vMX和MX150）中存在安全漏洞。攻击者可通过持续发送相同的数据包利用该漏洞造成拒绝服务（崩溃）。以下产品及版本受到影响：Juniper Networks Junos OS 18.1版本，18.2
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 | 18.1 ~ 18.1R3 | - |
|
II. Public POCs for CVE-2020-1627
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2020-1627 (1)
-
https://kb.juniper.net/JSA11006 x_refsource_CONFIRM
Same Patch Batch · Juniper Networks · 2020-04-08 · 22 CVEs total
| CVE-2020-1614 | 10.0 CRITICAL | NFX250 Series: Hardcoded credentials in the vSRX VNF instance. |
| CVE-2020-1615 | 9.8 CRITICAL | Junos OS: vMX: Default credentials supplied in vMX configuration |
| CVE-2020-1613 | 8.6 HIGH | Junos OS: BGP session termination upon receipt of specific BGP FlowSpec advertisement. |
| CVE-2020-1639 | 7.5 HIGH | Junos OS: A crafted Ethernet OAM packet received by Junos may cause the Ethernet OAM conne |
| CVE-2020-1617 | 7.5 HIGH | Junos OS: PTX1000 and PTX10000 Series, QFX10000 Series using non-AFT architectures: A spec |
| CVE-2020-1626 | 7.5 HIGH | Junos OS Evolved: Denial of Service vulnerability in processing high rate of specific pack |
| CVE-2020-1634 | 7.5 HIGH | Junos OS: High-End SRX Series: Multicast traffic might cause all FPCs to reset. |
| CVE-2020-1638 | 7.5 HIGH | Junos OS & Junos OS Evolved: A specific IPv4 packet can lead to FPC restart. |
| CVE-2020-1637 | 7.2 HIGH | Junos OS: SRX Series: Unified Access Control (UAC) bypass vulnerability |
| CVE-2020-1625 | 6.5 MEDIUM | Junos OS: Kernel memory leak in virtual-memory due to interface flaps |
| CVE-2020-1618 | 6.3 MEDIUM | Junos OS: EX and QFX Series: Console port authentication bypass vulnerability |
| CVE-2020-1619 | 6.0 MEDIUM | Junos OS: QFX10K Series, EX9200 Series, MX Series, PTX Series: Privilege escalation vulner |
| CVE-2020-1629 | 5.9 MEDIUM | Junos OS: A race condition vulnerability may cause RPD daemon to crash when processing a B |
| CVE-2020-1624 | 5.5 MEDIUM | Junos OS Evolved: objmon logs may leak sensitive information |
| CVE-2020-1622 | 5.5 MEDIUM | Junos OS Evolved: EvoSharedObjStore may leak sensitive information |
| CVE-2020-1623 | 5.5 MEDIUM | Junos OS Evolved: ev.ops file may leak sensitive information |
| CVE-2020-1620 | 5.5 MEDIUM | Junos OS Evolved: Configd leaks hashes via log file and is world readable |
| CVE-2020-1621 | 5.5 MEDIUM | Junos OS Evolved: Configd leaks hashes via stream and is world readable |
| CVE-2020-1628 | 5.3 MEDIUM | Junos OS: EX4300: Traffic from the network internal to the device (128.0.0.0) may be forwa |
| CVE-2020-1616 | 5.3 MEDIUM | JATP Series: JATP Is susceptible to slow brute force attacks on the SSH service. |
Showing top 20 of 22 CVEs. View all on vendor page → →
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Same vendor: Juniper Networks
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V. Comments for CVE-2020-1627
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