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CVE-2020-14367

Quick assessment

Affected
n/a Chrony
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.

chrony 3.5.1之前版本存在安全漏洞，该漏洞可导致数据丢失或拒绝服务。

AI Predicted 4.4 Difficulty: Easy EPSS 0.48% · P40

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys
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I. Basic Information for CVE-2020-14367

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in chrony versions before 3.5.1 when creating the PID file under the /var/run/chrony folder. The file is created during chronyd startup while still running as the root user, and when it's opened for writing, chronyd does not check for an existing symbolic link with the same file name. This flaw allows an attacker with privileged access to create a symlink with the default PID file name pointing to any destination file in the system, resulting in data loss and a denial of service due to the path traversal.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
chrony 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
chrony 3.5.1之前版本存在安全漏洞，该漏洞可导致数据丢失或拒绝服务。
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
- Chrony All chrony versions before 3.5.1 -

II. Public POCs for CVE-2020-14367

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III. Intelligence Information for CVE-2020-14367

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Vendor Advisories for CVE-2020-14367 (3)

Mailing List Discussions for CVE-2020-14367 (1)

Same Patch Batch · n/a · 2020-08-24 · 30 CVEs total

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CVE-2020-24606 8.6 HIGH Squid 输入验证错误漏洞
CVE-2020-7705 7.1 HIGH Malicious Package
CVE-2020-24612 6.7 MEDIUM selinux-policy (aka Reference Policy) package 授权问题漏洞
CVE-2020-13101 Digital Signature Services 数据伪造问题漏洞
CVE-2020-24613 wolfSSL 信任管理问题漏洞
CVE-2020-14349 PostgreSQL 代码问题漏洞
CVE-2020-14350 PostgreSQL 代码问题漏洞
CVE-2020-19877 DBHcms 路径遍历漏洞
CVE-2020-19878 DBHcms 信息泄露漏洞
CVE-2020-19879 DBHcms 跨站脚本漏洞
CVE-2020-19880 DBHcms 跨站脚本漏洞
CVE-2020-19881 DBHcms 跨站脚本漏洞
CVE-2020-19882 DBHcms 跨站脚本漏洞
CVE-2020-19883 DBHcms 跨站脚本漏洞
CVE-2020-19884 DBHcms 跨站脚本漏洞
CVE-2020-19885 DBHcms 跨站脚本漏洞
CVE-2020-19886 DBHcms 跨站请求伪造漏洞
CVE-2020-19887 DBHcms 存在跨站脚本漏洞
CVE-2020-19888 DBHcms 安全漏洞

Showing top 20 of 30 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Chrony
Same vendor: n/a
Same weakness: CWE-59

V. Comments for CVE-2020-14367

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