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CVE-2023-38496— Apptainer's ineffective privileges drop when requesting container network

Quick assessment

Affected
apptainer apptainer
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.

Apptainer是Apptainer开源的一个Linux开源容器平台。 Apptainer 1.2.0-rc.2版本存在安全漏洞，该漏洞源于在请求容器网络设置时引入了无效的权限下降，导致后续函数使用root权限调用。

CVSS 6.1 · Medium EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2023-38496

Vulnerability Information
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Vulnerability Title
Apptainer's ineffective privileges drop when requesting container network
Source: CVE Program / CVE List V5
Vulnerability Description
Apptainer is an open source container platform. Version 1.2.0-rc.2 introduced an ineffective privilege drop when requesting container network setup, therefore subsequent functions are called with root privileges, the attack surface is rather limited for users but an attacker could possibly craft a starter config to delete any directory on the host filesystems. A security fix has been included in Apptainer 1.2.1. There is no known workaround outside of upgrading to Apptainer 1.2.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权放弃/降低错误
Source: CVE Program / CVE List V5
Vulnerability Title
Apptainer 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apptainer是Apptainer开源的一个Linux开源容器平台。 Apptainer 1.2.0-rc.2版本存在安全漏洞，该漏洞源于在请求容器网络设置时引入了无效的权限下降，导致后续函数使用root权限调用。
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
apptainer apptainer >= 1.2.0-rc.2, < 1.2.1 -

II. Public POCs for CVE-2023-38496

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III. Intelligence Information for CVE-2023-38496

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Patches & Fixes for CVE-2023-38496 (2)

Vendor Advisories for CVE-2023-38496 (1)

IV. Related Vulnerabilities

Same product: apptainer
Same vendor: apptainer
Same weakness: CWE-271

V. Comments for CVE-2023-38496

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