What is the CVSS score of CVE-2020-7357?

CVE-2020-7357 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 33.9%.

Is there a public PoC exploit available for CVE-2020-7357?

Yes, a public proof-of-concept exploit is available for CVE-2020-7357. Prioritise patching immediately. EPSS: 33.9%.

Cms CVE-2020-7357

CRITICAL

OS Command Injection (CWE-78)

2020-08-06 cve@rapid7.com

Command Injection Cms Cms Se Firmware Cms Se Lxc Firmware Cms 60 Firmware Cms 40 Firmware Cms 20 Firmware Cayintech

9.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.9 CRITICAL

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Aug 06, 2020 - 16:15 nvd

CRITICAL 9.9

DescriptionNVD

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.

AnalysisAI

Cayin CMS suffers from an authenticated OS semi-blind command injection vulnerability using default credentials. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. 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.2, 8.0, and 7.5. Affected products include: Cayintech Cms-Se Firmware, Cayintech Cms-Se-Lxc Firmware, Cayintech Cms-60 Firmware, Cayintech Cms-40 Firmware, Cayintech Cms-20 Firmware. Version information: version 8.2.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.