Vulnerability-Lookup

CNVD-2021-34723

Vulnerability from cnvd - Published: 2021-05-16

Title

McAfee Endpoint Security权限提升漏洞（CNVD-2021-34723）

Description

Mcafee McAfee Endpoint Security（ENS）是美国迈克菲（Mcafee）公司的一套提供智能协作和先进的威胁防御的框架。该框架支持对实时通信的整个威胁防御生命周期进行控制并进行可操作的威胁取证等。 McAfee Endpoint Security存在权限提升漏洞。通过在Linux ENSL TP/FW安装过程中利用对使用时间的检查竞争条件，本地用户可以执行特权提升攻击，以获取管理员特权。

Severity

中

Patch Name

McAfee Endpoint Security权限提升漏洞（CNVD-2021-34723）的补丁

Patch Description

Mcafee McAfee Endpoint Security（ENS）是美国迈克菲（Mcafee）公司的一套提供智能协作和先进的威胁防御的框架。该框架支持对实时通信的整个威胁防御生命周期进行控制并进行可操作的威胁取证等。 McAfee Endpoint Security 存在权限提升漏洞。通过在Linux ENSL TP/FW安装过程中利用对使用时间的检查竞争条件，本地用户可以执行特权提升攻击，以获取管理员特权。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://kc.mcafee.com/corporate/index?page=content&id;=SB10355

Reference

https://kc.mcafee.com/corporate/index?page=content&id=SB10355

Impacted products

Name
Mcafee McAfee Endpoint Security

Show details on source website

JSON

To clipboard

{
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      "cveNumber": "CVE-2021-23892",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-23892"
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  "submitTime": "2021-05-14",
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}

CVE-2021-23892 (GCVE-0-2021-23892)

Vulnerability from cvelistv5 – Published: 2021-05-12 09:05 – Updated: 2024-08-03 19:14

Summary

By exploiting a time of check to time of use (TOCTOU) race condition during the Endpoint Security for Linux Threat Prevention and Firewall (ENSL TP/FW) installation process, a local user can perform a privilege escalation attack to obtain administrator privileges for the purpose of executing arbitrary code through insecure use of predictable temporary file locations.

Severity

8.2 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CWE

CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Assigner

trellix CNA under the mitre root

CNA scorecard – unranked: 6 records in the last 180 days, 10 needed details

References

1 reference

URL	Tags
https://kc.mcafee.com/corporate/index?page=conten…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
McAfee,LLC	McAfee Endpoint Security (ENS) for Linux	Affected: unspecified , < 10.7.5 (custom)

Show details on NVD website

JSON

To clipboard

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            "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10355"
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    "cna": {
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      ],
      "descriptions": [
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            }
          ],
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        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
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            "userInteraction": "REQUIRED",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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