Sandbox escape in xdg-desktop-portal



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-32462
CWE-ID CWE-88
Exploitation vector Local
Public exploit N/A
Vulnerable software
 xdg-desktop-portal
Other software / Other software solutions

Vendor Flatpak

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Neutralization of Argument Delimiters in a Command

EUVDB-ID: #VU88827

Risk: Low

CVSSv4.0: 5.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-32462

CWE-ID: CWE-88 - Argument Injection or Modification

Exploit availability: No

Description

The vulnerability allows a local application to bypass implemented security restrictions.

The vulnerability exists due to improper input validation when handling CLI arguments in the RequestBackground portal. A malicious application can escape sandbox via a specially crafted arguments and execute arbitrary code on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

xdg-desktop-portal: 1.0 - 1.18.3

CPE2.3 External links

https://github.com/flatpak/xdg-desktop-portal/releases/tag/1.18.4
https://github.com/flatpak/xdg-desktop-portal/releases/tag/1.16.1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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



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