cnvd-2020-57581
Vulnerability from cnvd
Title
Cisco IOS XE同意令牌绕过漏洞(CNVD-2020-57581)
Description
Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。
Cisco IOS XE的持久性Telnet/Secure Shell (SSH) CLI存在同意令牌绕过漏洞。该漏洞源于在授权Shell访问中同意令牌的强制执行不足。攻击者可利用该漏洞获得shell访问权限并在底层操作系统上以root权限执行命令。
Severity
高
VLAI Severity ?
Patch Name
Cisco IOS XE同意令牌绕过漏洞(CNVD-2020-57581)的补丁
Patch Description
Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。
Cisco IOS XE的持久性Telnet/Secure Shell (SSH) CLI存在同意令牌绕过漏洞。该漏洞源于在授权Shell访问中同意令牌的强制执行不足。攻击者可利用该漏洞获得shell访问权限并在底层操作系统上以root权限执行命令。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-iosxe-ctbypass-7QHAfHkK
Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-3404
Impacted products
| Name | Cisco IOS XE |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2020-3404",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3404"
}
},
"description": "Cisco IOS XE\u662f\u7f8e\u56fdCisco\u516c\u53f8\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u4e00\u5957\u57fa\u4e8eLinux\u5185\u6838\u7684\u6a21\u5757\u5316\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco IOS XE\u7684\u6301\u4e45\u6027Telnet/Secure Shell (SSH) CLI\u5b58\u5728\u540c\u610f\u4ee4\u724c\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u6388\u6743Shell\u8bbf\u95ee\u4e2d\u540c\u610f\u4ee4\u724c\u7684\u5f3a\u5236\u6267\u884c\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u5f97shell\u8bbf\u95ee\u6743\u9650\u5e76\u5728\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4ee5root\u6743\u9650\u6267\u884c\u547d\u4ee4\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-iosxe-ctbypass-7QHAfHkK",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2020-57581",
"openTime": "2020-10-20",
"patchDescription": "Cisco IOS XE\u662f\u7f8e\u56fdCisco\u516c\u53f8\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u4e00\u5957\u57fa\u4e8eLinux\u5185\u6838\u7684\u6a21\u5757\u5316\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XE\u7684\u6301\u4e45\u6027Telnet/Secure Shell (SSH) CLI\u5b58\u5728\u540c\u610f\u4ee4\u724c\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u6388\u6743Shell\u8bbf\u95ee\u4e2d\u540c\u610f\u4ee4\u724c\u7684\u5f3a\u5236\u6267\u884c\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u5f97shell\u8bbf\u95ee\u6743\u9650\u5e76\u5728\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4ee5root\u6743\u9650\u6267\u884c\u547d\u4ee4\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 IOS XE\u540c\u610f\u4ee4\u724c\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2020-57581\uff09\u7684\u8865\u4e01",
"products": {
"product": "Cisco IOS XE"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3404",
"serverity": "\u9ad8",
"submitTime": "2020-09-25",
"title": "Cisco IOS XE\u540c\u610f\u4ee4\u724c\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2020-57581\uff09"
}
Loading…
Loading…
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.
Loading…
Loading…