PT-2023-2086 · Google · Android

Published 2023-03-01 · Updated 2026-03-08 · CVE-2023-20963

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 Android-11 through Android-13

Description The issue is related to a possible parcel mismatch in WorkSource, which could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation. The vulnerability is associated with errors in the certificate authentication procedure. It has been exploited in the wild, with cases involving the Pinduoduo app, which used the exploit to download additional malicious modules for spying on users and accessing their notifications and files.

Recommendations For Android versions Android-11 through Android-13, update to a version that contains a fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

LPE

Improper Certificate Validation

Weakness Enumeration

CWE-264

CWE-295

Related Identifiers

ASB-A-220302519

BDU:2023-01819

CVE-2023-20963

Affected Products

Android

References · 24

• 🔥 https://github.com/pwnipc/BadParcel · Exploit
• 🔥 https://github.com/Chal13W1zz/BadParcel · Exploit
• https://source.android.com/docs/security/bulletin/2023-03-01 · Security Note
• https://osv.dev/vulnerability/ASB-A-220302519 · Vendor Advisory
• https://source.android.com/security/bulletin/2023-03-01 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-01819 · Security Note
• https://osv.dev/vulnerability/CVE-2023-20963 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-20963 · Security Note
• https://t.me/cybersecuritytechnologies/9475 · Telegram Post
• https://t.me/tomhunter/1556 · Telegram Post
• https://twitter.com/_bagipro/status/1860068536179368298 · Twitter Post
• https://securityonline.info/android-app-from-china-exploited-0-day-cve-2023-20963-vulnerability · Note
• https://cybersecurity-help.cz/vdb/SB2023030649 · Note
• https://t.me/cibsecurity/60683 · Telegram Post
• https://twitter.com/clovernetics/status/1707727002885816386 · Twitter Post