CVE-2021-21527
Quick assessment
Affected
Dell PowerScale OneFS
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.
Dell Technologies Dell PowerScale OneFS是美国Dell Technologies公司的一个操作系统。提供横向扩展NAS的PowerScale OneFS操作系统。 Dell PowerScale OneFS 8.1.0-9.1.0版本存在安全漏洞，该漏洞允许具有ISI PRIV LOGIN SSH或ISI PRIV LOGIN CONSOLE权限的认证用户升级权限。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-21527
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Dell PowerScale OneFS 8.1.0-9.1.0 contain an improper neutralization of special elements used in an OS command vulnerability. This vulnerability may allow an authenticated user with ISI_PRIV_LOGIN_SSH or ISI_PRIV_LOGIN_CONSOLE privileges to escalate privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Dell Technologies Dell PowerScale OneFS 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dell Technologies Dell PowerScale OneFS是美国Dell Technologies公司的一个操作系统。提供横向扩展NAS的PowerScale OneFS操作系统。 Dell PowerScale OneFS 8.1.0-9.1.0版本存在安全漏洞，该漏洞允许具有ISI PRIV LOGIN SSH或ISI PRIV LOGIN CONSOLE权限的认证用户升级权限。
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 |
|---|---|---|---|---|
| Dell | PowerScale OneFS | unspecified ~ 9.0.0 / 9.1.0 / 9.2.0 | - |
|
II. Public POCs for CVE-2021-21527
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-21527 (1)
-
https://www.dell.com/support/kbdoc/000185978 x_refsource_MISC
Same Patch Batch · Dell · 2021-05-06 · 3 CVEs total
| CVE-2021-21505 | 8.0 HIGH | Microsoft Azure和Microsoft Azure Stack 安全漏洞 |
| CVE-2021-21550 | 6.0 MEDIUM | DELL EMC PowerScale 操作系统命令注入漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-21527
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