PT-2024-28526 · Unknown · Craftbeerpi 4

Pondzik + 1 · Published 2024-05-02 · Updated 2024-07-03 · CVE-2024-3955

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions CraftBeerPi 4 versions 4.0.0.58 through 4.4.1.a1

Description The issue arises from the URL GET parameter logtime being utilized within the "downloadlog" function from "cbpi/http endpoints/http system.py". This parameter is subsequently passed to the os.system function in "cbpi/controller/system controller.py" without prior validation, allowing for the execution of arbitrary code.

Recommendations For CraftBeerPi 4 versions 4.0.0.58 through 4.4.1.a1, update to a version after 4.4.1.a1 to resolve the issue. As a temporary workaround, consider disabling the downloadlog function until a patch is available. Restrict access to the os.system function to minimize the risk of exploitation. Avoid using the logtime parameter in the affected API endpoint until the issue is resolved.

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2024-3955

GHSA-4F92-W438-F484

Affected Products

Craftbeerpi 4

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2024-3955 · Security Note
• https://osv.dev/vulnerability/GHSA-4f92-w438-f484 · Vendor Advisory
• https://github.com/PiBrewing/craftbeerpi4 · Note
• https://github.com/PiBrewing/craftbeerpi4/issues/132 · Note
• https://cert.pl/posts/2024/05/CVE-2024-3955 · Note
• https://twitter.com/VulmonFeeds/status/1786013141484159093 · Twitter Post
• https://cert.pl/en/posts/2024/05/CVE-2024-3955 · Note
• https://twitter.com/CVEnew/status/1786000843755700371 · Twitter Post