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CVE-2019-14889

Quick assessment

Affected
Red Hat libssh
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.

libssh是libssh组织的一个用于访问SSH服务的C语言开发包，它能够执行远程命令、文件传输，同时为远程的程序提供安全的传输通道。 libssh 存在操作系统命令注入漏洞，该漏洞可能允许远程身份验证的攻击者在系统上执行任意命令，这是由 ssh_scp_new() 中的缺陷引起的。通过发送特制的请求，攻击者可以利用该漏洞在系统上执行任意命令。

AI Predicted 9.8 Difficulty: Easy EPSS 3.17% · P88

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2019-14889

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found with the libssh API function ssh_scp_new() in versions before 0.9.3 and before 0.8.8. When the libssh SCP client connects to a server, the scp command, which includes a user-provided path, is executed on the server-side. In case the library is used in a way where users can influence the third parameter of the function, it would become possible for an attacker to inject arbitrary commands, leading to a compromise of the remote target.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
libssh 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libssh是libssh组织的一个用于访问SSH服务的C语言开发包，它能够执行远程命令、文件传输，同时为远程的程序提供安全的传输通道。 libssh 存在操作系统命令注入漏洞，该漏洞可能允许远程身份验证的攻击者在系统上执行任意命令，这是由 ssh_scp_new() 中的缺陷引起的。通过发送特制的请求，攻击者可以利用该漏洞在系统上执行任意命令。
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
Red Hat libssh All libssh versions before 0.9.3 -

II. Public POCs for CVE-2019-14889

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III. Intelligence Information for CVE-2019-14889

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Vendor Advisories for CVE-2019-14889 (4)

Mailing List Discussions for CVE-2019-14889 (4)

Other References for CVE-2019-14889 (1)

Same Patch Batch · Red Hat · 2019-12-10 · 3 CVEs total

CVE-2019-14861 Samba 输入验证错误漏洞
CVE-2019-14870 Samba 授权问题漏洞

IV. Related Vulnerabilities

Same product: libssh
Same vendor: Red Hat
Same weakness: CWE-78

V. Comments for CVE-2019-14889

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