Vulnerability in Xerosecurity Sn1per
CVE-2021-39273
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Xerosecurity Sn1per — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/1N3/Sn1per/releases (Third Party Advisory, Release Notes)
- github.com/nikip72/CVE-2021-39273-CVE-2021-39274 (Exploit, Third Party Advisory)
- github.com/1N3/Sn1per/issues/358 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-39273?
- CVE-2021-39273 is a high-severity vulnerability in Xerosecurity Sn1per, classified under Incorrect Default Permissions. CVSS score: 8.8/10. Published 2021-08-19.
- How severe is CVE-2021-39273?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-39273 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.