CVE-2021-20704
Quick assessment
Affected
NEC Corporation CLUSTERPRO X
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Nec Expresscluster X是日本Nec公司的一款专高可用集群软件。用于启动快速还原功能并持续地保护关键的应用程式和资料。NEC Corporation CLUSTERPRO是NEC 的一款HA集群软件。 NEC Corporation CLUSTERPRO X 1.0版本和 EXPRESSCLUSTER X1.0版本存在缓冲区错误漏洞，该漏洞源于软件与以前版本(8.0及更早版本)兼容的API存在边界错误。远程攻击者可以利用该漏洞发送一个专门制作的包，触发内存损坏并在目标系统上执行任意代码。
Possible ATT&CK Techniques 3 AI
T1190 · Exploit Public-Facing Application T1068 · Exploitation for Privilege Escalation T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-20704
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer overflow vulnerability in the compatible API with previous versions CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
NEC Corporation CLUSTERPRO 和 EXPRESSCLUSTER 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nec Expresscluster X是日本Nec公司的一款专高可用集群软件。用于启动快速还原功能并持续地保护关键的应用程式和资料。NEC Corporation CLUSTERPRO是NEC 的一款HA集群软件。 NEC Corporation CLUSTERPRO X 1.0版本和 EXPRESSCLUSTER X1.0版本存在缓冲区错误漏洞，该漏洞源于软件与以前版本(8.0及更早版本)兼容的API存在边界错误。远程攻击者可以利用该漏洞发送一个专门制作的包，触发内存损坏并在目标系统上执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| NEC Corporation | CLUSTERPRO X | CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier | - |
|
II. Public POCs for CVE-2021-20704
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-20704 (1)
-
https://jpn.nec.com/security-info/secinfo/nv21-015_en.html x_refsource_MISC
Same Patch Batch · NEC Corporation · 2021-11-02 · 8 CVEs total
| CVE-2021-20700 | Office Server Document Converter 缓冲区错误漏洞 | |
| CVE-2021-20701 | NEC Corporation CLUSTERPRO缓冲区错误漏洞 | |
| CVE-2021-20702 | NEC Corporation CLUSTERPRO 缓冲区错误漏洞 | |
| CVE-2021-20703 | NEC Corporation CLUSTERPRO缓冲区错误漏洞 | |
| CVE-2021-20705 | NEC Corporation CLUSTERPRO 输入验证错误漏洞 | |
| CVE-2021-20706 | NEC Corporation CLUSTERPRO 输入验证错误漏洞 | |
| CVE-2021-20707 | NEC Corporation CLUSTERPRO 输入验证错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-20704
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