Vulnerability-Lookup

CNVD-2021-99660

Vulnerability from cnvd - Published: 2021-12-14

Title

Fortinet FortiClient for Windows授权错误漏洞

Description

Fortinet FortiClient是美国Fortinet公司的一种结构代理。用于在单个模块化轻量级客户端中提供保护、合规性和安全访问。 Fortinet FortiClient for Windows 7.0.0，6.4.6及之前版本和6.2.8及之前版本存在授权错误漏洞。未经身份认证的攻击者可利用该漏洞通过修改session-id参数绕过webfilter控制。

Severity

中

Patch Name

Fortinet FortiClient for Windows授权错误漏洞的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://fortiguard.com/advisory/FG-IR-20-127

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-36167

Impacted products

Name
['Fortinet FortiClient for Windows 7.0.0', 'Fortinet FortiClient for Windows <=6.4.6', 'Fortinet FortiClient for Windows <=6.2.8']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-36167",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-36167"
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  "number": "CNVD-2021-99660",
  "openTime": "2021-12-14",
  "patchDescription": "Fortinet FortiClient\u662f\u7f8e\u56fdFortinet\u516c\u53f8\u7684\u4e00\u79cd\u7ed3\u6784\u4ee3\u7406\u3002\u7528\u4e8e\u5728\u5355\u4e2a\u6a21\u5757\u5316\u8f7b\u91cf\u7ea7\u5ba2\u6237\u7aef\u4e2d\u63d0\u4f9b\u4fdd\u62a4\u3001\u5408\u89c4\u6027\u548c\u5b89\u5168\u8bbf\u95ee\u3002\r\n\r\nFortinet FortiClient for Windows 7.0.0\uff0c6.4.6\u53ca\u4e4b\u524d\u7248\u672c\u548c6.2.8\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u6388\u6743\u9519\u8bef\u6f0f\u6d1e\u3002\u672a\u7ecf\u8eab\u4efd\u8ba4\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u4fee\u6539session-id\u53c2\u6570\u7ed5\u8fc7webfilter\u63a7\u5236\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Fortinet FortiClient for Windows\u6388\u6743\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Fortinet FortiClient for Windows 7.0.0",
      "Fortinet FortiClient for Windows \u003c=6.4.6",
      "Fortinet FortiClient for Windows \u003c=6.2.8"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-36167",
  "serverity": "\u4e2d",
  "submitTime": "2021-12-13",
  "title": "Fortinet FortiClient for Windows\u6388\u6743\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-36167 (GCVE-0-2021-36167)

Vulnerability from cvelistv5 – Published: 2021-12-09 09:33 – Updated: 2024-10-25 13:37

Summary

An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:P/RL:X/RC:X

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-23 13:57 UTC

CWE

Improper access control

Assigner

fortinet mitre root

References

1 reference

URL	Tags
https://fortiguard.com/advisory/FG-IR-20-127	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Fortinet	Fortinet FortiClientWindows	Affected: FortiClientWindows 7.0.0, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0

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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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.