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CVE-2018-0061— Junos OS: Denial of service in telnetd

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 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系统的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。telnetd service是其中的一个远程访问服务组件。 Juniper Junos OS中的telnetd service存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务（CPU资源耗尽）。以下版本受到影响：Juniper Junos OS 12.1X46版本（SRX系列），12.3版本，12.3X48版本（SRX系列

AI Predicted 7.5 Difficulty: Easy EPSS 2.27% · P82
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I. Basic Information for CVE-2018-0061

Vulnerability Information
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Vulnerability Title
Junos OS: Denial of service in telnetd
Source: CVE Program / CVE List V5
Vulnerability Description
A denial of service vulnerability in the telnetd service on Junos OS allows remote unauthenticated users to cause high CPU usage which may affect system performance. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D81 on SRX Series; 12.3 versions prior to 12.3R12-S11; 12.3X48 versions prior to 12.3X48-D80 on SRX Series; 15.1 versions prior to 15.1R7; 15.1X49 versions prior to 15.1X49-D150, 15.1X49-D160 on SRX Series; 15.1X53 versions prior to 15.1X53-D59 on EX2300/EX3400 Series; 15.1X53 versions prior to 15.1X53-D68 on QFX10K Series; 15.1X53 versions prior to 15.1X53-D235 on QFX5200/QFX5110 Series; 15.1X53 versions prior to 15.1X53-D495 on NFX Series; 16.1 versions prior to 16.1R4-S12, 16.1R6-S6, 16.1R7; 16.2 versions prior to 16.2R2-S7, 16.2R3; 17.1 versions prior to 17.1R2-S9, 17.1R3; 17.2 versions prior to 17.2R2-S6, 17.2R3; 17.2X75 versions prior to 17.2X75-D100; 17.3 versions prior to 17.3R2-S4, 17.3R3; 17.4 versions prior to 17.4R1-S5, 17.4R2; 18.2X75 versions prior to 18.2X75-D5.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Junos OS telnetd service 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper 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系统的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。telnetd service是其中的一个远程访问服务组件。 Juniper Junos OS中的telnetd service存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务（CPU资源耗尽）。以下版本受到影响：Juniper Junos OS 12.1X46版本（SRX系列），12.3版本，12.3X48版本（SRX系列
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 12.1X46 ~ 12.1X46-D81 -
Juniper Networks Junos OS 12.3 ~ 12.3R12-S11 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D59 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D68 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D235 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D495 -

II. Public POCs for CVE-2018-0061

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III. Intelligence Information for CVE-2018-0061

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Vendor Advisories for CVE-2018-0061 (2)

Same Patch Batch · Juniper Networks · 2018-10-10 · 21 CVEs total

CVE-2018-0053 vSRX Series: A local authentication vulnerability may lead to full control of a vSRX insta
CVE-2018-0063 Junos OS: Nexthop index allocation failed: private index space exhausted after incoming AR
CVE-2018-0062 Junos OS: Denial of Service in J-Web
CVE-2018-0060 Junos OS: Invalid IP/mask learned from DHCP server might cause device control daemon (dcd)
CVE-2018-0059 ScreenOS: Stored Cross-Site Scripting (XSS) vulnerability
CVE-2018-0058 MX Series: In BBE configurations, receipt of a crafted IPv6 exception packet causes a Deni
CVE-2018-0057 Junos OS: authd allows assignment of IP address requested by DHCP subscriber logging in wi
CVE-2018-0056 MX Series: L2ALD daemon may crash if a duplicate MAC is learned by two different interface
CVE-2018-0055 Junos OS: jdhcpd process crash during processing of specially crafted DHCPv6 message
CVE-2018-0054 QFX5000/EX4600 Series: Routing protocol flap upon receipt of high rate of Ethernet frames
CVE-2018-0043 Junos OS: RPD daemon crashes upon receipt of specific MPLS packet
CVE-2018-0052 Junos OS: Unauthenticated remote root access possible when RSH service is enabled
CVE-2018-0051 Junos OS: Denial of Service vulnerability in MS-PIC, MS-MIC, MS-MPC, MS-DPC and SRX flow d
CVE-2018-0050 Junos OS: Receipt of a malformed MPLS RSVP packet leads to a Routing Protocols Daemon (RPD
CVE-2018-0049 Junos OS: Receipt of a specifically crafted malicious MPLS packet leads to a Junos kernel
CVE-2018-0048 Junos OS: Memory exhaustion denial of service vulnerability in Routing Protocols Daemon (R
CVE-2018-0047 Junos Space Security Director: XSS vulnerability in web administration
CVE-2018-0046 Junos Space: Reflected Cross-site Scripting vulnerability in OpenNMS
CVE-2018-0045 Junos OS: RPD daemon crashes due to receipt of specific Draft-Rosen MVPN control packet in
CVE-2018-0044 NFX Series: Insecure sshd configuration in Juniper Device Manager (JDM) and host OS

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks

V. Comments for CVE-2018-0061

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