PT-2023-18052 · Google · Android

Published 2023-08-01 · Updated 2024-10-09 · CVE-2023-21272

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 Android versions prior to the fixed version

Description The issue is related to a possible bad URI permission grant due to improper input validation in the readFrom method of Uri.java. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android versions prior to the fixed version, consider restricting access to the readFrom method of Uri.java to minimize the risk of exploitation. As a temporary workaround, avoid using the Uri.java class until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Privilege Management

RCE

Weakness Enumeration

CWE-269

CWE-20

Related Identifiers

ASB-A-227471459

CVE-2023-21272

Affected Products

Android

References · 8

• https://osv.dev/vulnerability/ASB-A-227471459 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-21272 · Vendor Advisory
• https://source.android.com/security/bulletin/2023-08-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-21272 · Security Note
• https://twitter.com/CVEnew/status/1691196356734382081 · Twitter Post
• https://t.me/cvenotify/97642 · Telegram Post
• https://android.googlesource.com/platform/frameworks/base/+/4dea696369a309cf39daa3e94fec7156c290a9c2 · Note
• https://twitter.com/TechFishNews/status/1691246997951664128 · Twitter Post