PT-2022-9856 · Google · Android

Published 2022-05-12 · Updated 2022-05-24 · CVE-2021-27768

Positive Technologies (AI Summary)

CVSS v3.1

6.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Android application (affected versions not specified)

Description The issue allows for a Man-in-the-Middle (MITM) attack due to a lack of hostname verification, enabling the interception of sensitive account information. This was demonstrated by setting up a proxy server in 'transparent' mode with a certificate containing an invalid hostname. The Android application has hostname verification issues during server setup and login flows, but it does not process requests after login.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Certificate Validation

Weakness Enumeration

CWE-300

CWE-295

Related Identifiers

CVE-2021-27768

Affected Products

Android

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-27768 · Security Note
• https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097753 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-27768 · Vendor Advisory
• https://t.me/cvenotify/30623 · Telegram Post