CVE-2021-39273

HIGH

Xerosecurity Sn1per - Incorrect Default Permissions

Title source: rule
STIX 2.1

Description

In XeroSecurity Sn1per 9.0 (free version), insecure permissions (0777) are set upon application execution, allowing an unprivileged user to modify the application, modules, and configuration files. This leads to arbitrary code execution with root privileges.

Exploits (1)

nomisec WRITEUP 1 stars
by nikip72 · poc
https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274

References (3)

Core 3
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/1N3/Sn1per/releases
Exploit, Third Party Advisory x_refsource_misc
https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274
Exploit, Third Party Advisory x_refsource_misc
https://github.com/1N3/Sn1per/issues/358

Scores

CVSS v3 8.8
EPSS 0.0166
EPSS Percentile 82.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-276
Status published
Products (1)
xerosecurity/sn1per 9.0
Published Aug 19, 2021
Tracked Since Feb 18, 2026