Arbitrary file upload in Tribalsystems Zenario
CVE-2021-42171
Zenario CMS 9.0.54156 is vulnerable to File Upload. The web server can be compromised by uploading and executing a web-shell which can run commands, browse system files, browse local resources, attack other servers, and exploit the local vulnerabilities, and so forth.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Tribalsystems Zenario — versions 9.0.54156
Weakness classification (CWE)
Public proof-of-concept exploits
References
- minhnq22.medium.com/file-upload-to-rce-on-zenario-9-0-54156-cms-fa05fcc6cf74 (Third Party Advisory)
- github.com/hieuminhnv/Zenario-CMS-9.0-last-version/issues/2 (Exploit, Third Party Advisory, Issue Tracking)
- packetstormsecurity.com/files/166617/Zenario-CMS-9.0.54156-Remote-Code-Executio… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42171?
- CVE-2021-42171 is a high-severity vulnerability in Tribalsystems Zenario, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2022-03-14.
- How severe is CVE-2021-42171?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2021-42171 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.