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CVE-2019-15998— Cisco IOS XR Software NETCONF Over Secure Shell ACL Bypass Vulnerability

Quick assessment

Affected
Cisco Cisco IOS XR Software
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.

Cisco IOS XR是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XR 6.5.1版本和6.5.2版本中的NETCONF over Secure Shell (SSH) 的访问控制逻辑存在访问控制错误漏洞，该漏洞源于NETCONF over SSH访问列表缺少安检查。攻击者可利用该漏洞连接到设备上。

AI Predicted 5.6 Difficulty: Moderate EPSS 0.73% · P52

Possible ATT&CK Techniques 1 AI

T1570.002
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I. Basic Information for CVE-2019-15998

Vulnerability Information
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Vulnerability Title
Cisco IOS XR Software NETCONF Over Secure Shell ACL Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the access-control logic of the NETCONF over Secure Shell (SSH) of Cisco IOS XR Software may allow connections despite an access control list (ACL) that is configured to deny access to the NETCONF over SSH of an affected device. The vulnerability is due to a missing check in the NETCONF over SSH access control list (ACL). An attacker could exploit this vulnerability by connecting to an affected device using NETCONF over SSH. A successful exploit could allow the attacker to connect to the device on the NETCONF port. Valid credentials are required to access the device. This vulnerability does not affect connections to the default SSH process on the device.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS XR 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XR是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XR 6.5.1版本和6.5.2版本中的NETCONF over Secure Shell (SSH) 的访问控制逻辑存在访问控制错误漏洞，该漏洞源于NETCONF over SSH访问列表缺少安检查。攻击者可利用该漏洞连接到设备上。
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
Cisco Cisco IOS XR Software unspecified ~ n/a -

II. Public POCs for CVE-2019-15998

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III. Intelligence Information for CVE-2019-15998

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Vendor Advisories for CVE-2019-15998 (1)

Same Patch Batch · Cisco · 2019-11-26 · 24 CVEs total

CVE-2019-16001 Cisco Webex Teams for Windows DLL Hijacking Vulnerability
CVE-2019-15973 Cisco Industrial Network Director Reflected Cross-Site Scripting Vulnerability
CVE-2019-15967 Cisco TelePresence Collaboration Endpoint and RoomOS Audio Eavesdropping Vulnerability
CVE-2019-15960 Cisco Webex Network Recording Admin Page Privilege Escalation Vulnerability
CVE-2019-15958 Cisco Prime Infrastructure and Evolved Programmable Network Manager Remote Code Execution
CVE-2019-15956 Cisco Web Security Appliance Unauthorized Device Reset Vulnerability
CVE-2019-15288 Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Privile
CVE-2019-15286 Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne
CVE-2019-15284 Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne
CVE-2019-15276 Cisco Wireless LAN Controller HTTP Parsing Engine Denial of Service Vulnerability
CVE-2019-15271 Cisco Small Business RV016, RV042, RV042G, and RV082 Routers Arbitrary Command Execution V
CVE-2019-16002 Cisco SD-WAN Solution vManage Cross-Site Request Forgery Vulnerability
CVE-2019-15968 Cisco Unified Communications Domain Manager Persistent Cross-Site Scripting Vulnerability
CVE-2019-15997 Cisco DNA Spaces: Connector Command Injection Vulnerability
CVE-2019-15996 Cisco DNA Spaces: Connector Privilege Escalation Vulnerability
CVE-2019-15995 Cisco DNA Spaces: Connector SQL Injection Vulnerability
CVE-2019-15994 Cisco Stealthwatch Enterprise Cross-Site Scripting Vulnerability
CVE-2019-15990 Cisco Small Business Routers RV016, RV042, RV042G, and RV082 Information Disclosure Vulner
CVE-2019-15988 Cisco Email Security Appliance URL Filtering Bypass Vulnerability
CVE-2019-15987 Cisco WebEx Centers Username Enumeration Information Disclosure Vulnerability

Showing top 20 of 24 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco IOS XR Software
Same vendor: Cisco
Same weakness: CWE-284

V. Comments for CVE-2019-15998

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