#VU95152 Security features bypass in Snapd - CVE-2024-1724

Vulnerability identifier: #VU95152

Vulnerability risk: Medium

CVSSv4.0: 4.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-1724

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Snapd
Universal components / Libraries / Software for developers

Vendor: snapcore

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists die to snapd failes to restrict writes to the $HOME/bin path when using AppArmor for enforcement of sandbox permissions. A remote attacker can trick the victim to install a malicious snap and install arbitrary scripts into the users PATH which.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Snapd: 2.0 - 2.61.3

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External links
https://github.com/snapcore/snapd/commit/aa191f97713de8dc3ce3ac818539f0b976eb8ef6
https://gld.mcphail.uk/posts/explaining-cve-2024-1724/
https://github.com/snapcore/snapd/pull/13689

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.