PT-2022-25333 · Ubports · Ubports Ubuntu Touch

Published 2022-09-08 · Updated 2024-08-03 · CVE-2022-40297

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions UBports Ubuntu Touch version 16.04

Description The issue allows the screen-unlock passcode to be used for a privileged shell via Sudo. This passcode is only four digits, which is far below the typical length and complexity for a user account's password. A third party claims that the described attack cannot be executed as demonstrated.

Recommendations For UBports Ubuntu Touch version 16.04, consider disabling the use of the screen-unlock passcode for privileged shell access via Sudo as a temporary workaround until a patch is available. Restrict access to Sudo to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2022-40297

Affected Products

Ubports Ubuntu Touch

References · 8

• 🔥 https://github.com/filipkarc/PoC-ubuntutouch-pin-privesc · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-40297 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40297 · Vendor Advisory
• https://t.me/cybersecuritytechnologies/6771 · Telegram Post
• https://t.me/cvenotify/88768 · Telegram Post
• https://t.me/cibsecurity/49487 · Telegram Post
• https://t.me/cvenotify/36271 · Telegram Post
• https://t.me/cvenotify/35919 · Telegram Post