RCE in Cayintech Cms
CVE-2020-7357
Cayin CMS suffers from an authenticated OS semi-blind command injection vulnerability using default credentials. This can be exploited to inject and execute arbitrary shell commands as the root user through the 'NTP_Server_IP' HTTP POST parameter in system.cgi page. This issue affects several branches and versions of the CMS application, including CME-SE, CMS-60, CMS-40, CMS-20, and CMS version 8.2, 8.0, and 7.5.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.321 (98.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Cayintech Cms — versions 7.5, 8.0, 8.2
- Cayintech Cms-20
- Cayintech Cms-20_firmware — versions 9.0
- Cayintech Cms-40
- Cayintech Cms-40_firmware — versions 9.0
- Cayintech Cms-60
- Cayintech Cms-60_firmware — versions 11.0
- Cayintech Cms-se
- Cayintech Cms-se_firmware — versions 11.0
- Cayintech Cms-se-lxc
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@rapid7.com (Exploit, Patch, x_refsource_MISC)
- cve@rapid7.com (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@rapid7.com (vendor-advisory, VDB Entry, Third Party Advisory, x_refsource_IBM)
Frequently asked questions
- What is CVE-2020-7357?
- CVE-2020-7357 is a critical-severity vulnerability in Cayintech Cms, classified under OS Command Injection. CVSS score: 9.6/10. Published 2020-08-06.
- How severe is CVE-2020-7357?
- Critical severity. CVSS v3 base score is 9.6 out of 10.
- Is CVE-2020-7357 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.