CVE-2019-1842— Cisco IOS XR Software Secure Shell Authentication Vulnerability
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I. Basic Information for CVE-2019-1842
Vulnerability Information
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Vulnerability Title
Cisco IOS XR Software Secure Shell Authentication Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Secure Shell (SSH) authentication function of Cisco IOS XR Software could allow an authenticated, remote attacker to successfully log in to an affected device using two distinct usernames. The vulnerability is due to a logic error that may occur when certain sequences of actions are processed during an SSH login event on the affected device. An attacker could exploit this vulnerability by initiating an SSH session to the device with a specific sequence that presents the two usernames. A successful exploit could result in logging data misrepresentation, user enumeration, or, in certain circumstances, a command authorization bypass. See the Details section for more information.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XR 授权问题漏洞
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中的Secure Shell (SSH)身份验证功能存在授权问题漏洞。该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。
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 ~ 6.1.4 | - |
II. Public POCs for CVE-2019-1842
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190605-iosxr-sshvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2019-1842
Same Patch Batch · Cisco · 2019-06-05 · 9 CVEs total
| CVE-2019-1881 | Cisco Industrial Network Director Cross-Site Request Forgery Vulnerability | |
| CVE-2019-1882 | Cisco Industrial Network Director Stored Cross-Site Scripting Vulnerability | |
| CVE-2019-1870 | Cisco Enterprise Chat and Email Cross-Site Scripting Vulnerability | |
| CVE-2019-1872 | Cisco TelePresence Video Communication Server and Cisco Expressway Series Server-Side Requ | |
| CVE-2019-1880 | Cisco Unified Computing System BIOS Signature Bypass Vulnerability | |
| CVE-2019-1845 | Cisco Unified Communications Manager IM&P Service, Cisco TelePresence VCS, and Cisco Expre | |
| CVE-2019-1861 | Cisco Industrial Network Director Remote Code Execution Vulnerability | |
| CVE-2019-1868 | Cisco Webex Meetings Server Information Disclosure Vulnerability |
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V. Comments for CVE-2019-1842
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