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CVE-2018-0008— Junos OS: commit script may allow unauthenticated root login upon reboot

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。 Juniper Junos OS中存在安全漏洞。攻击者可利用该漏洞以root权限登录。以下版本受到影响：Juniper Junos OS 12.1X46-D71之前的12.1X46（SRX），12.3X48-D55之前的12.3X48版本（SRX），14.1R9之前的14.1版本，14.1X53-D40之前的14.1X53版本

AI Predicted 8.6 Difficulty: Moderate EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2018-0008

Vulnerability Information
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Vulnerability Title
Junos OS: commit script may allow unauthenticated root login upon reboot
Source: CVE Program / CVE List V5
Vulnerability Description
An unauthenticated root login may allow upon reboot when a commit script is used. A commit script allows a device administrator to execute certain instructions during commit, which is configured under the [system scripts commit] stanza. Certain commit scripts that work without a problem during normal commit may cause unexpected behavior upon reboot which can leave the system in a state where root CLI login is allowed without a password due to the system reverting to a "safe mode" authentication state. Lastly, only logging in physically to the console port as root, with no password, will work. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D71 on SRX; 12.3X48 versions prior to 12.3X48-D55 on SRX; 14.1 versions prior to 14.1R9; 14.1X53 versions prior to 14.1X53-D40 on QFX, EX; 14.2 versions prior to 14.2R7-S9, 14.2R8; 15.1 versions prior to 15.1F5-S7, 15.1F6-S8, 15.1R5-S6, 15.1R6; 15.1X49 versions prior to 15.1X49-D110 on SRX; 15.1X53 versions prior to 15.1X53-D232 on QFX5200/5110; 15.1X53 versions prior to 15.1X53-D49, 15.1X53-D470 on NFX; 15.1X53 versions prior to 15.1X53-D65 on QFX10K; 16.1 versions prior to 16.1R2. No other Juniper Networks products or platforms are affected by this issue.
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 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。 Juniper Junos OS中存在安全漏洞。攻击者可利用该漏洞以root权限登录。以下版本受到影响：Juniper Junos OS 12.1X46-D71之前的12.1X46（SRX），12.3X48-D55之前的12.3X48版本（SRX），14.1R9之前的14.1版本，14.1X53-D40之前的14.1X53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 12.1X46 ~ 12.1X46-D71 -
Juniper Networks Junos OS 14.1 ~ 14.1R9 -
Juniper Networks Junos OS 14.1X53 ~ 14.1X53-D40 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D232 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D49, 15.1X53-D470 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D65 -

II. Public POCs for CVE-2018-0008

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III. Intelligence Information for CVE-2018-0008

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Vendor Advisories for CVE-2018-0008 (2)

Mailing List Discussions for CVE-2018-0008 (1)

Same Patch Batch · Juniper Networks · 2018-01-10 · 12 CVEs total

CVE-2018-0001 Junos: Unauthenticated Remote Code Execution through J-Web interface
CVE-2018-0002 MX series, SRX series: Junos OS: Denial of service vulnerability in Flowd on devices with
CVE-2018-0003 Junos OS: A crafted MPLS packet may lead to a kernel crash
CVE-2018-0004 Junos OS: Kernel Denial of Service Vulnerability
CVE-2018-0005 Security Bulletin: Junos OS: MAC move limit configured to drop traffic may forward traffic
CVE-2018-0006 Junos OS: bbe-smgd process denial of service while processing VLAN authentication requests
CVE-2018-0009 SRX Series: Firewall bypass vulnerability when UUID with leading zeros is configured.
CVE-2018-0011 Junos Space: Reflected XSS vulnerability in Junos Space management interface
CVE-2018-0012 Junos Space: Local privilege escalation vulnerability in Junos Space
CVE-2018-0013 Junos Space: Local File Inclusion Vulnerability
CVE-2018-0014 ScreenOS: Etherleak vulnerability found on ScreenOS device

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks

V. Comments for CVE-2018-0008

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