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CVE-2020-1628— Junos OS: EX4300: Traffic from the network internal to the device (128.0.0.0) may be forwarded to egress interfaces

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中存在信息泄露漏洞，该漏洞源于程序为RE和PFEs之前的内部通信使用了128.0.0.0/2子网，而使用该子网的数据包可能会发生泄漏。攻击者可借助特制请求利用该漏洞获取敏感信息。以下产品及版本受到影响：Juniper Networks Junos OS 14.

CVSS 5.3 · Medium EPSS 1.29% · P69

Possible ATT&CK Techniques 1 AI

T1572 · Protocol Tunneling
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I. Basic Information for CVE-2020-1628

Vulnerability Information
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Vulnerability Title
Junos OS: EX4300: Traffic from the network internal to the device (128.0.0.0) may be forwarded to egress interfaces
Source: CVE Program / CVE List V5
Vulnerability Description
Juniper Networks Junos OS uses the 128.0.0.0/2 subnet for internal communications between the RE and PFEs. It was discovered that packets utilizing these IP addresses may egress an EX4300 switch, leaking configuration information such as heartbeats, kernel versions, etc. out to the Internet, leading to an information exposure vulnerability. This issue affects Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D53 on EX4300; 15.1 versions prior to 15.1R7-S6 on EX4300; 15.1X49 versions prior to 15.1X49-D200, 15.1X49-D210 on EX4300; 16.1 versions prior to 16.1R7-S7 on EX4300; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2 on EX4300; 17.2 versions prior to 17.2R3-S3 on EX4300; 17.3 versions prior to 17.3R2-S5, 17.3R3-S7 on EX4300; 17.4 versions prior to 17.4R2-S9, 17.4R3 on EX4300; 18.1 versions prior to 18.1R3-S8 on EX4300; 18.2 versions prior to 18.2R3-S2 on EX4300; 18.3 versions prior to 18.3R2-S3, 18.3R3, 18.3R3-S1 on EX4300; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3 on EX4300; 19.1 versions prior to 19.1R1-S4, 19.1R2 on EX4300; 19.2 versions prior to 19.2R1-S4, 19.2R2 on EX4300; 19.3 versions prior to 19.3R1-S1, 19.3R2 on EX4300.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS 信息泄露漏洞
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中存在信息泄露漏洞，该漏洞源于程序为RE和PFEs之前的内部通信使用了128.0.0.0/2子网，而使用该子网的数据包可能会发生泄漏。攻击者可借助特制请求利用该漏洞获取敏感信息。以下产品及版本受到影响：Juniper Networks Junos OS 14.
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 14.1X53 ~ 14.1X53-D53 -

II. Public POCs for CVE-2020-1628

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III. Intelligence Information for CVE-2020-1628

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Vendor Advisories for CVE-2020-1628 (1)

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-2020-1627 7.5 HIGH Junos OS: vMX and MX150: Denial of Service vulnerability in packet processing
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-2020-1616 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 → →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-200

V. Comments for CVE-2020-1628

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