PT-2020-11790 · Google · Android

Published 2020-11-01 · Updated 2021-07-21 · CVE-2020-0448

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Android versions 8.0 through 11

Description In the getPhoneAccountsForPackage function of TelecomServiceImpl.java, there is a possible way to access a tracking identifier due to a missing permission check. This could lead to local information disclosure of the identifier, which could be used to track an account across devices, with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android versions 8.0 through 11, consider restricting access to the getPhoneAccountsForPackage function in TelecomServiceImpl.java until a patch is available. As a temporary workaround, disabling the getPhoneAccountsForPackage function could help minimize the risk of exploitation.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

ASB-A-153995334

CVE-2020-0448

Affected Products

Android

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2020-0448 · Security Note
• https://osv.dev/vulnerability/ASB-A-153995334 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-0448 · Vendor Advisory
• https://source.android.com/security/bulletin/2020-11-01 · Vendor Advisory
• https://android.googlesource.com/platform/packages/services/Telecomm/+/1938c5be3be49f2652b84a58f1f448d57871e28e · Note
• https://t.me/cvenotify/5439 · Telegram Post
• https://t.me/cibsecurity/16067 · Telegram Post