VulnerabilityModified
CVE-2021-39274
In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file.
CRITICAL 9.8EPSS 3.12%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.12% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-276
- Affected
- xerosecurity/sn1per
- Source
- cve@mitre.org
References
- https://github.com/1N3/Sn1per/issues/357Exploit, Third Party Advisory
- https://github.com/1N3/Sn1per/releasesRelease Notes, Third Party Advisory
- https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274Exploit, Third Party Advisory
- https://github.com/1N3/Sn1per/issues/357Exploit, Third Party Advisory
- https://github.com/1N3/Sn1per/releasesRelease Notes, Third Party Advisory
- https://github.com/nikip72/CVE-2021-39273-CVE-2021-39274Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.