PT-2021-14232 · Gu App · Gu App

Nao Komatsu · Published 2021-07-07 · Updated 2022-05-03 · CVE-2021-20777

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions: GU App for Android versions 4.8.0 through 5.0.2

Description: The issue is related to improper authorization in the handler for a custom URL scheme, allowing a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

Recommendations: For GU App for Android versions 4.8.0 through 5.0.2, update to a version outside of this range to resolve the issue.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2021-20777

Affected Products

Gu App

References · 5

• https://osv.dev/vulnerability/CVE-2021-20777 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20777 · Security Note
• https://t.me/cvenotify/17661 · Telegram Post
• https://t.me/cvenotify/17190 · Telegram Post
• https://jvn.jp/en/jp/JVN25850723/index.html · Note