cnvd-2021-05520
Vulnerability from cnvd
Title
Cisco AnyConnect Secure Mobility Client for Windows代码问题漏洞(CNVD-2021-05520)
Description
Cisco AnyConnect Secure Mobility Client for Windows是美国思科(Cisco)公司的一款基于Windows平台的可通过任何设备安全访问网络和应用的安全移动客户端。
Cisco AnyConnect Secure Mobility Client for Windows 存在安全漏洞,该漏洞源于应用程序在运行时加载的资源验证不足。攻击者可利用该漏洞在系统的特定路径中插入配置文件,从而导致加载恶意DLL文件。
Severity
高
VLAI Severity ?
Patch Name
Cisco AnyConnect Secure Mobility Client for Windows代码问题漏洞(CNVD-2021-05520) 的补丁
Patch Description
Cisco AnyConnect Secure Mobility Client for Windows是美国思科(Cisco)公司的一款基于Windows平台的可通过任何设备安全访问网络和应用的安全移动客户端。
Cisco AnyConnect Secure Mobility Client for Windows 存在安全漏洞,该漏洞源于应用程序在运行时加载的资源验证不足。攻击者可利用该漏洞在系统的特定路径中插入配置文件,从而导致加载恶意DLL文件。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
目前厂商已发布升级补丁以修复漏洞,补丁获取链接: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-injec-pQnryXLf
Reference
https://nvd.nist.gov/vuln/detail/CVE-2021-1237
Impacted products
| Name | Cisco Cisco AnyConnect Secure Mobility Client for Windows <4.9.04043 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2021-1237"
}
},
"description": "Cisco AnyConnect Secure Mobility Client for Windows\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u57fa\u4e8eWindows\u5e73\u53f0\u7684\u53ef\u901a\u8fc7\u4efb\u4f55\u8bbe\u5907\u5b89\u5168\u8bbf\u95ee\u7f51\u7edc\u548c\u5e94\u7528\u7684\u5b89\u5168\u79fb\u52a8\u5ba2\u6237\u7aef\u3002\n\nCisco AnyConnect Secure Mobility Client for Windows \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5e94\u7528\u7a0b\u5e8f\u5728\u8fd0\u884c\u65f6\u52a0\u8f7d\u7684\u8d44\u6e90\u9a8c\u8bc1\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u7684\u7279\u5b9a\u8def\u5f84\u4e2d\u63d2\u5165\u914d\u7f6e\u6587\u4ef6\uff0c\u4ece\u800c\u5bfc\u81f4\u52a0\u8f7d\u6076\u610fDLL\u6587\u4ef6\u3002",
"formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-injec-pQnryXLf",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2021-05520",
"openTime": "2021-01-25",
"patchDescription": "Cisco AnyConnect Secure Mobility Client for Windows\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u57fa\u4e8eWindows\u5e73\u53f0\u7684\u53ef\u901a\u8fc7\u4efb\u4f55\u8bbe\u5907\u5b89\u5168\u8bbf\u95ee\u7f51\u7edc\u548c\u5e94\u7528\u7684\u5b89\u5168\u79fb\u52a8\u5ba2\u6237\u7aef\u3002\r\n\r\nCisco AnyConnect Secure Mobility Client for Windows \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5e94\u7528\u7a0b\u5e8f\u5728\u8fd0\u884c\u65f6\u52a0\u8f7d\u7684\u8d44\u6e90\u9a8c\u8bc1\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u7684\u7279\u5b9a\u8def\u5f84\u4e2d\u63d2\u5165\u914d\u7f6e\u6587\u4ef6\uff0c\u4ece\u800c\u5bfc\u81f4\u52a0\u8f7d\u6076\u610fDLL\u6587\u4ef6\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\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-05520\uff09 \u7684\u8865\u4e01",
"products": {
"product": "Cisco Cisco AnyConnect Secure Mobility Client for Windows \u003c4.9.04043"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1237",
"serverity": "\u9ad8",
"submitTime": "2021-01-18",
"title": "Cisco AnyConnect Secure Mobility Client for Windows\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-05520\uff09"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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