PT-2021-7749 · Filezen · Filezen

Published 2021-02-16 · Updated 2021-02-22 · CVE-2021-20655

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions FileZen versions 3.0.0 through 4.2.7 FileZen versions 5.0.0 through 5.0.2

Description The issue is related to the web administration interface of the FileZen file sharing server, which fails to neutralize special elements used in operating system commands. This allows a remote attacker with administrator rights to execute arbitrary OS commands.

Recommendations For versions 3.0.0 through 4.2.7, update to a version outside of this range to mitigate the risk. For versions 5.0.0 through 5.0.2, update to a version outside of this range to mitigate the risk. As a temporary workaround, consider restricting access to the administration interface to minimize the risk of exploitation.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2023-02423

CVE-2021-20655

Affected Products

Filezen

References · 10

• 🔥 https://soliton.co.jp/support/2021/004334.html · Exploit
• https://osv.dev/vulnerability/CVE-2021-20655 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02423 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-20655 · Security Note
• https://t.me/cybersecuritytechnologies/2759 · Telegram Post
• https://t.me/cvenotify/10033 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021021601 · Note
• https://securitylab.ru/news/519314.php · Note
• https://t.me/cibsecurity/23696 · Telegram Post
• https://jvn.jp/en/jp/JVN58774946/index.html · Note