PT-2021-14244 · Unknown · Groupsession Zion+2

Ryo Sato · Published 2021-07-28 · Updated 2021-08-06 · CVE-2021-20789

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: GroupSession Free edition versions 2.2.0 through 5.1.0 GroupSession byCloud versions 3.0.3 through 5.1.0 GroupSession ZION versions 3.0.3 through 5.1.0

Description: The issue allows a remote attacker to redirect a user to an arbitrary web site and conduct a phishing attack via a specially crafted URL.

Recommendations: For GroupSession Free edition versions 2.2.0 through 5.1.0, update to version 5.1.0 or later. For GroupSession byCloud versions 3.0.3 through 5.1.0, update to version 5.1.0 or later. For GroupSession ZION versions 3.0.3 through 5.1.0, update to version 5.1.0 or later.

Fix

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2021-20789

Affected Products

Groupsession Free Edition

Groupsession Zion

Groupsession Bycloud

References · 5

• https://groupsession.jp/info/info-news/security202107 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-20789 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20789 · Security Note
• https://jvn.jp/en/jp/JVN86026700/index.html · Note
• https://t.me/cibsecurity/26599 · Telegram Post