CVE-2024-1724— snapd allows $HOME/bin symlink
Quick assessment
Affected
Canonical snap
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.
snapd是snapcore开源的一个跨平台的包管理工具。使系统能够使用.snap文件。 snapd 2.62之前版本存在安全漏洞，该漏洞源于当使用 AppArmor 强制执行沙盒权限时，无法限制对 $HOME/bin 路径的写入。
Possible ATT&CK Techniques 3 AI
T1112 · Modify Registry T1059 · Command and Scripting Interpreter T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2024-1724
Vulnerability Information
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Vulnerability Title
snapd allows $HOME/bin symlink
Source: CVE Program / CVE List V5
Vulnerability Description
In snapd versions prior to 2.62, when using AppArmor for enforcement of
sandbox permissions, snapd failed to restrict writes to the $HOME/bin
path. In Ubuntu, when this path exists, it is automatically added to
the users PATH. An attacker who could convince a user to install a
malicious snap which used the 'home' plug could use this vulnerability
to install arbitrary scripts into the users PATH which may then be run
by the user outside of the expected snap sandbox and hence allow them
to escape confinement.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5
Vulnerability Title
snapd 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
snapd是snapcore开源的一个跨平台的包管理工具。使系统能够使用.snap文件。 snapd 2.62之前版本存在安全漏洞，该漏洞源于当使用 AppArmor 强制执行沙盒权限时，无法限制对 $HOME/bin 路径的写入。
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
II. Public POCs for CVE-2024-1724
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2024-1724 (2)
Security Blog Posts for CVE-2024-1724 (1)
Same Patch Batch · Canonical · 2024-07-25 · 3 CVEs total
| CVE-2024-29068 | 5.8 MEDIUM | snapd non-regular file indefinite blocking read |
| CVE-2024-29069 | 4.8 MEDIUM | snapd will follow archived symlinks when unpacking a filesystem |
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V. Comments for CVE-2024-1724
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