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CVE-2023-7216— Cpio: extraction allows symlinks which enables remote command execution

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 6
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.

cpio是一款用于类UNIX系统的文件备份程序。 CPIO存在后置链接漏洞，该漏洞源于存在路径遍历，允许未经身份验证的远程攻击者诱骗用户打开特制的存档，然后在目标系统上运行任意命令。

CVSS 5.3 · Medium EPSS 0.90% · P56
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I. Basic Information for CVE-2023-7216

Vulnerability Information
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Vulnerability Title
Cpio: extraction allows symlinks which enables remote command execution
Source: CVE Program / CVE List V5
Vulnerability Description
A path traversal vulnerability was found in the CPIO utility. This issue could allow a remote unauthenticated attacker to trick a user into opening a specially crafted archive. During the extraction process, the archiver could follow symlinks outside of the intended directory, which allows files to be written in arbitrary directories through symlinks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
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
cpio 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cpio是一款用于类UNIX系统的文件备份程序。 CPIO存在后置链接漏洞，该漏洞源于存在路径遍历，允许未经身份验证的远程攻击者诱骗用户打开特制的存档，然后在目标系统上运行任意命令。
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 Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2023-7216

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III. Intelligence Information for CVE-2023-7216

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Vendor Advisories for CVE-2023-7216 (2)

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 6
Same vendor: Red Hat
Same weakness: CWE-59

V. Comments for CVE-2023-7216

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