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CVE-2022-25328— Privilege escalation through command injection in fscrypt

Quick assessment

Affected
Google LLC fscrypt
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.

Google Fscrypt是美国谷歌（Google）公司的一个开源高级工具。用于管理 Linux 本机文件系统加密。 fscrypt存在操作系统命令注入漏洞，该漏洞的存在是由于fscrypt bash完成脚本中不正确的输入验证。未经身份验证的远程攻击者可利用该漏洞可以将专门制作的数据传递给应用程序，并在目标系统上执行任意命令。该漏洞允许远程攻击者可利用该漏洞在目标系统上执行任意命令。

CVSS 5.0 · Medium EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection
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I. Basic Information for CVE-2022-25328

Vulnerability Information
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Vulnerability Title
Privilege escalation through command injection in fscrypt
Source: CVE Program / CVE List V5
Vulnerability Description
The bash_completion script for fscrypt allows injection of commands via crafted mountpoint paths, allowing privilege escalation under a specific set of circumstances. A local user who has control over mountpoint paths could potentially escalate their privileges if they create a malicious mountpoint path and if the system administrator happens to be using the fscrypt bash completion script to complete mountpoint paths. We recommend upgrading to version 0.3.3 or above
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
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
Google Fscrypt 操作系统操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Fscrypt是美国谷歌（Google）公司的一个开源高级工具。用于管理 Linux 本机文件系统加密。 fscrypt存在操作系统命令注入漏洞，该漏洞的存在是由于fscrypt bash完成脚本中不正确的输入验证。未经身份验证的远程攻击者可利用该漏洞可以将专门制作的数据传递给应用程序，并在目标系统上执行任意命令。该漏洞允许远程攻击者可利用该漏洞在目标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
Google LLC fscrypt unspecified ~ 0.3.2 -

II. Public POCs for CVE-2022-25328

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III. Intelligence Information for CVE-2022-25328

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Patches & Fixes for CVE-2022-25328 (1)

Same Patch Batch · Google LLC · 2022-02-25 · 4 CVEs total

CVE-2022-0247 7.5 HIGH Write access to VMO data through copy-on-write in Fuchsia
CVE-2022-25326 5.5 MEDIUM Denial of Service in fscrypt
CVE-2022-25327 5.5 MEDIUM Local Denial of Service in fscrypt PAM module

IV. Related Vulnerabilities

Same product: fscrypt
Same vendor: Google LLC
Same weakness: CWE-78

V. Comments for CVE-2022-25328

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