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CVE-2020-1643— Junos OS: EX Series: RPD crash when executing specific "show ospf interface" commands from the CLI with OSPF authentication configured

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中存在安全漏洞。本地攻击者可通过连续执行相同的CLI命令利用该漏洞使RPD进程反复崩溃，进而造成持续的拒绝服务。以下产品及版本受到影响：Juniper Networks Junos OS 12.3X48版本，14.1X53版本，15.1版本，15.1X49版本

CVSS 5.5 · Medium EPSS 0.34% · P25
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I. Basic Information for CVE-2020-1643

Vulnerability Information
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Vulnerability Title
Junos OS: EX Series: RPD crash when executing specific "show ospf interface" commands from the CLI with OSPF authentication configured
Source: CVE Program / CVE List V5
Vulnerability Description
Execution of the "show ospf interface extensive" or "show ospf interface detail" CLI commands on a Juniper Networks device running Junos OS may cause the routing protocols process (RPD) to crash and restart if OSPF interface authentication is configured, leading to a Denial of Service (DoS). By continuously executing the same CLI commands, a local attacker can repeatedly crash the RPD process causing a sustained Denial of Service. Note: Only systems utilizing ARM processors, found on the EX2300 and EX3400, are vulnerable to this issue. Systems shipped with other processor architectures are not vulnerable to this issue. The processor architecture can be displayed via the 'uname -a' command. For example: ARM (vulnerable): % uname -a | awk '{print $NF}' arm PowerPC (not vulnerable): % uname -a | awk '{print $NF}' powerpc AMD (not vulnerable): % uname -a | awk '{print $NF}' amd64 Intel (not vulnerable): % uname -a | awk '{print $NF}' i386 This issue affects Juniper Networks Junos OS: 12.3X48 versions prior to 12.3X48-D100; 14.1X53 versions prior to 14.1X53-D140, 14.1X53-D54; 15.1 versions prior to 15.1R7-S7; 15.1X49 versions prior to 15.1X49-D210; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S8; 17.1 versions prior to 17.1R2-S12; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S2, 17.4R3; 18.1 versions prior to 18.1R3-S2; 18.2 versions prior to 18.2R2, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S2, 18.3R2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件的处理不恰当
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中存在安全漏洞。本地攻击者可通过连续执行相同的CLI命令利用该漏洞使RPD进程反复崩溃，进而造成持续的拒绝服务。以下产品及版本受到影响：Juniper Networks Junos OS 12.3X48版本，14.1X53版本，15.1版本，15.1X49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 12.3X48 ~ 12.3X48-D100 -

II. Public POCs for CVE-2020-1643

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III. Intelligence Information for CVE-2020-1643

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Vendor Advisories for CVE-2020-1643 (1)

Same Patch Batch · Juniper Networks · 2020-07-17 · 15 CVEs total

CVE-2020-1654 9.8 CRITICAL Junos OS: SRX Series: processing a malformed HTTP message when ICAP redirect service is en
CVE-2020-1647 9.8 CRITICAL Junos OS: SRX Series: Double free vulnerability can lead to DoS or remote code execution d
CVE-2020-1645 8.3 HIGH Junos OS: MX Series: Services card might restart when DNS filtering is enabled
CVE-2020-1653 7.5 HIGH Junos OS: Kernel crash (vmcore) or FPC crash due to mbuf leak
CVE-2020-1649 7.5 HIGH Junos OS: MX Series: PFE crash on MPC7/8/9 upon receipt of small fragments requiring reass
CVE-2020-1650 7.5 HIGH Junos OS: MX Series: Denial of Service vulnerability in MS-PIC component on MS-MIC or MS-M
CVE-2020-1648 7.5 HIGH Junos OS and Junos OS Evolved: RPD crash when processing a specific BGP packet
CVE-2020-1646 7.5 HIGH Junos OS and Junos OS Evolved: RPD crash while processing a specific BGP update informatio
CVE-2020-1644 7.5 HIGH Junos OS and Junos OS Evolved: RPD crash due to specific BGP UPDATE packets
CVE-2020-1640 7.5 HIGH Junos OS: Receipt of certain genuine BGP packets from any BGP Speaker causes RPD to crash.
CVE-2020-1651 6.5 MEDIUM Junos OS: MX Series: PFE on the line card may crash due to memory leak.
CVE-2020-1641 6.5 MEDIUM Junos OS: A race condition on receipt of crafted LLDP packets leads to a memory leak and a
CVE-2020-1652 5.6 MEDIUM Junos Space: OpenNMS is accessible via port 9443
CVE-2020-1655 5.3 MEDIUM Junos OS: MX Series: PFE crash on MPC7/8/9 upon receipt of large packets requiring fragmen

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-755

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