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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.321 (98.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.321 · newest: 0.321 · change: 0.000
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
- github.com/rapid7/metasploit-framework/pull/13607 (Exploit, Patch)
- www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5570.php (Exploit, Third Party Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/182925 (vendor-advisory, VDB Entry, Third Party Advisory)
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.