Vulnerability-Lookup

CNVD-2021-37774

Vulnerability from cnvd - Published: 2021-05-25

Title

Cisco AnyConnect Secure Mobility Client for Windows DLL劫持漏洞（CNVD-2021-37774）

Description

Cisco AnyConnect Secure Mobility Client是一种虚拟专用网络（VPN）客户端，适用于各种操作系统和硬件配置。 Cisco AnyConnect Secure Mobility Client for Windows存在DLL劫持漏洞。该漏洞源于该应用程序从用户可写目录加载DLL文件。攻击者可通过将恶意DLL文件复制到特定目录利用该漏洞以SYSTEM权限在受影响的设备上执行任意代码。

Severity

高

Patch Name

Cisco AnyConnect Secure Mobility Client for Windows DLL劫持漏洞（CNVD-2021-37774）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-code-exec-jR3tWTA6

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-code-exec-jR3tWTA6

Impacted products

Name
Cisco AnyConnect Secure Mobility Client for Windows <4.9.06037

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1427",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1427"
    }
  },
  "description": "Cisco AnyConnect Secure Mobility Client\u662f\u4e00\u79cd\u865a\u62df\u4e13\u7528\u7f51\u7edc\uff08VPN\uff09\u5ba2\u6237\u7aef\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u64cd\u4f5c\u7cfb\u7edf\u548c\u786c\u4ef6\u914d\u7f6e\u3002\n\nCisco AnyConnect Secure Mobility Client for Windows\u5b58\u5728DLL\u52ab\u6301\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u5e94\u7528\u7a0b\u5e8f\u4ece\u7528\u6237\u53ef\u5199\u76ee\u5f55\u52a0\u8f7dDLL\u6587\u4ef6\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c06\u6076\u610fDLL\u6587\u4ef6\u590d\u5236\u5230\u7279\u5b9a\u76ee\u5f55\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5SYSTEM\u6743\u9650\u5728\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-code-exec-jR3tWTA6",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-37774",
  "openTime": "2021-05-25",
  "patchDescription": "Cisco AnyConnect Secure Mobility Client\u662f\u4e00\u79cd\u865a\u62df\u4e13\u7528\u7f51\u7edc\uff08VPN\uff09\u5ba2\u6237\u7aef\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u64cd\u4f5c\u7cfb\u7edf\u548c\u786c\u4ef6\u914d\u7f6e\u3002\r\n\r\nCisco AnyConnect Secure Mobility Client for Windows\u5b58\u5728DLL\u52ab\u6301\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u5e94\u7528\u7a0b\u5e8f\u4ece\u7528\u6237\u53ef\u5199\u76ee\u5f55\u52a0\u8f7dDLL\u6587\u4ef6\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5c06\u6076\u610fDLL\u6587\u4ef6\u590d\u5236\u5230\u7279\u5b9a\u76ee\u5f55\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5SYSTEM\u6743\u9650\u5728\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\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": "Cisco AnyConnect Secure Mobility Client for Windows DLL\u52ab\u6301\u6f0f\u6d1e\uff08CNVD-2021-37774\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco AnyConnect Secure Mobility Client for Windows \u003c4.9.06037"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-code-exec-jR3tWTA6",
  "serverity": "\u9ad8",
  "submitTime": "2021-05-06",
  "title": "Cisco AnyConnect Secure Mobility Client for Windows DLL\u52ab\u6301\u6f0f\u6d1e\uff08CNVD-2021-37774\uff09"
}

CVE-2021-1427 (GCVE-0-2021-1427)

Vulnerability from cvelistv5 – Published: 2021-05-06 12:42 – Updated: 2024-11-08 23:18

Title

Cisco AnyConnect Secure Mobility Client for Windows DLL and Executable Hijacking Vulnerabilities

Summary

Multiple vulnerabilities in the install, uninstall, and upgrade processes of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to hijack DLL or executable files that are used by the application. A successful exploit could allow the attacker to execute arbitrary code on an affected device with SYSTEM privileges. To exploit these vulnerabilities, the attacker must have valid credentials on the Windows system. For more information about these vulnerabilities, see the Details section of this advisory.

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-08 20:17 UTC

CWE

CWE-378

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco AnyConnect Secure Mobility Client	Affected: n/a

Date Public

2021-05-05 00:00

Show details on NVD website

JSON

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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.