CVE-2020-5846
Last modified
CVE-2020-5846 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An insecure file upload and code execution issue was discovered in Ahsay Cloud Backup Suite 8.3.0.30 via a "PUT /obs/obm7/file/upload" request with the base64-encoded pathname in the X-RSW-custom-encode-path HTTP header, and the content in the HTTP request body. It is possible to upload a file into any directory of the server. EPSS estimates a 1.40% chance of exploitation in the next 30 days.
Description
An insecure file upload and code execution issue was discovered in Ahsay Cloud Backup Suite 8.3.0.30 via a "PUT /obs/obm7/file/upload" request with the base64-encoded pathname in the X-RSW-custom-encode-path HTTP header, and the content in the HTTP request body. It is possible to upload a file into any directory of the server. One can insert a JSP shell into the web server's directory and execute it. This leads to full system access as the configured user (e.g., Administrator) when starting from any authenticated session (e.g., a trial account). This is fixed in the 83/830122/cbs-*-hotfix-task26000 builds.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ahsay | Cloud Backup Suite | 8.3.0.30 |
References
- https://www.wbsec.nl/ahsay-2/Exploit, Third Party Advisory
- https://www.wbsec.nl/ahsay-2/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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