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CVE-2024-6759— NFS client accepts file names containing path separators

Quick assessment

Affected
FreeBSD FreeBSD
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.

FreeBSD是FreeBSD基金会的一套类Unix操作系统。 FreeBSD存在安全漏洞，该漏洞源于当使用NFS挂载远程文件系统时，内核不会对远程提供的文件名清理，会导致代理问题。

AI Predicted 6.8 Difficulty: Hard EPSS 0.68% · P51
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I. Basic Information for CVE-2024-6759

Vulnerability Information
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Vulnerability Title
NFS client accepts file names containing path separators
Source: CVE Program / CVE List V5
Vulnerability Description
When mounting a remote filesystem using NFS, the kernel did not sanitize remotely provided filenames for the path separator character, "/". This allows readdir(3) and related functions to return filesystem entries with names containing additional path components. The lack of validation described above gives rise to a confused deputy problem. For example, a program copying files from an NFS mount could be tricked into copying from outside the intended source directory, and/or to a location outside the intended destination directory.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
FreeBSD 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeBSD是FreeBSD基金会的一套类Unix操作系统。 FreeBSD存在安全漏洞，该漏洞源于当使用NFS挂载远程文件系统时，内核不会对远程提供的文件名清理，会导致代理问题。
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
FreeBSD FreeBSD 14.1-RELEASE ~ p3 -

II. Public POCs for CVE-2024-6759

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III. Intelligence Information for CVE-2024-6759

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Other References for CVE-2024-6759 (1)

Same Patch Batch · FreeBSD · 2024-08-11 · 4 CVEs total

CVE-2024-7589 OpenSSH pre-authentication async signal safety issue
CVE-2024-6760 ktrace(2) fails to detach when executing a setuid binary
CVE-2024-6640 pf incorrectly matches different ICMPv6 states in the state table

IV. Related Vulnerabilities

Same product: FreeBSD
Same vendor: FreeBSD

V. Comments for CVE-2024-6759

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