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CVE-2011-4190— Missing verification of host key for kdump server

Quick assessment

Affected
SUSE kdump
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.

kdump是一个使用在Linux内核中基于kexec的内核崩溃转储功能组件。 kdump 2012-01-20之前版本中存在安全漏洞，该漏洞源于程序缺少主机密钥的验证。远程攻击者可利用该漏洞冒充当前的kdump主机，获取敏感信息（kdump核心文件）。

AI Predicted 5.3 Difficulty: Hard EPSS 0.78% · P55
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I. Basic Information for CVE-2011-4190

Vulnerability Information
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Vulnerability Title
Missing verification of host key for kdump server
Source: CVE Program / CVE List V5
Vulnerability Description
The kdump implementation is missing the host key verification in the kdump and mkdumprd OpenSSH integration of kdump prior to version 2012-01-20. This is similar to CVE-2011-3588, but different in that the kdump implementation is specific to SUSE. A remote malicious kdump server could use this flaw to impersonate the correct kdump server to obtain security sensitive information (kdump core files).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
kdump 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kdump是一个使用在Linux内核中基于kexec的内核崩溃转储功能组件。 kdump 2012-01-20之前版本中存在安全漏洞，该漏洞源于程序缺少主机密钥的验证。远程攻击者可利用该漏洞冒充当前的kdump主机，获取敏感信息（kdump核心文件）。
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
SUSE kdump unspecified ~ 2012-01-20 -

II. Public POCs for CVE-2011-4190

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III. Intelligence Information for CVE-2011-4190

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Vendor Advisories for CVE-2011-4190 (2)

Same Patch Batch · SUSE · 2018-06-08 · 3 CVEs total

CVE-2012-0433 insecure permissions on files containing confidential data
CVE-2011-3172 unix2_chkpwd do not check for a valid account

IV. Related Vulnerabilities

Same vendor: SUSE
Same weakness: CWE-306

V. Comments for CVE-2011-4190

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