CNVD-2021-24469
Vulnerability from cnvd - Published: 2021-04-02
VLAI Severity ?
Title
Cisco IOS XE本地权限提升漏洞
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的其中一个诊断测试CLI命令存在本地权限提升漏洞。该漏洞源于受影响的软件允许在特定情况下修改受影响设备的运行时内存。本地认证攻击者可利用该漏洞覆盖系统内存位置,并在受影响设备的底层Linux操作系统上执行任意代码。
Severity
高
Patch Name
Cisco IOS XE本地权限提升漏洞的补丁
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的其中一个诊断测试CLI命令存在本地权限提升漏洞。该漏洞源于受影响的软件允许在特定情况下修改受影响设备的运行时内存。本地认证攻击者可利用该漏洞覆盖系统内存位置,并在受影响设备的底层Linux操作系统上执行任意代码。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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-XE-OFP-6Nezgn7b
Reference
https://nvd.nist.gov/vuln/detail/CVE-2021-1390
Impacted products
| Name | ['Cisco IOS XE 16.9.1', 'Cisco IOS XE 16.9.1a', 'Cisco IOS XE 16.9.1b', 'Cisco IOS XE 16.9.1c', 'Cisco IOS XE 16.9.1d', 'Cisco IOS XE 16.9.1s', 'Cisco IOS XE 16.9.2', 'Cisco IOS XE 16.9.2a', 'Cisco IOS XE 16.9.2s', 'Cisco IOS XE 16.9.3', 'Cisco IOS XE 16.9.3a', 'Cisco IOS XE 16.9.3h', 'Cisco IOS XE 16.9.3s', 'Cisco IOS XE 16.9.4', 'Cisco IOS XE 16.9.4c', 'Cisco IOS XE 16.9.5', 'Cisco IOS XE 16.9.5f', 'Cisco IOS XE 16.9.6', 'Cisco IOS XE 16.10.1', 'Cisco IOS XE 16.10.1a', 'Cisco IOS XE 16.10.1b', 'Cisco IOS XE 16.10.1c', 'Cisco IOS XE 16.10.1d', 'Cisco IOS XE 16.10.1e', 'Cisco IOS XE 16.10.1f', 'Cisco IOS XE 16.10.2', 'Cisco IOS XE 16.10.3', 'Cisco IOS XE 16.11.1', 'Cisco IOS XE 16.11.1a', 'Cisco IOS XE 16.11.1b', 'Cisco IOS XE 16.11.1c', 'Cisco IOS XE 16.11.1s', 'Cisco IOS XE 16.11.2', 'Cisco IOS XE 16.12.1', 'Cisco IOS XE 16.12.1a', 'Cisco IOS XE 16.12.1c', 'Cisco IOS XE 16.12.1s', 'Cisco IOS XE 16.12.1t', 'Cisco IOS XE 16.12.1w', 'Cisco IOS XE 16.12.1x', 'Cisco IOS XE 16.12.1y', 'Cisco IOS XE 16.12.1z', 'Cisco IOS XE 16.12.1za', 'Cisco IOS XE 16.12.2', 'Cisco IOS XE 16.12.2a', 'Cisco IOS XE 16.12.2s', 'Cisco IOS XE 16.12.2t', 'Cisco IOS XE 16.12.3', 'Cisco IOS XE 16.12.3a', 'Cisco IOS XE 16.12.3s', 'Cisco IOS XE 16.12.4', 'Cisco IOS XE 16.12.4a', 'Cisco IOS XE 17.1.1', 'Cisco IOS XE 17.1.1a', 'Cisco IOS XE 17.1.1s', 'Cisco IOS XE 17.1.1t', 'Cisco IOS XE 17.1.2', 'Cisco IOS XE 17.2.1', 'Cisco IOS XE 17.2.1a', 'Cisco IOS XE 17.2.1r', 'Cisco IOS XE 17.2.2', 'Cisco IOS XE 17.2.3', 'Cisco IOS XE 16.8.1', 'Cisco IOS XE 16.8.1a', 'Cisco IOS XE 16.8.1b', 'Cisco IOS XE 16.8.1c', 'Cisco IOS XE 16.8.1d', 'Cisco IOS XE 16.8.1e', 'Cisco IOS XE 16.8.1s', 'Cisco IOS XE 16.8.2', 'Cisco IOS XE 16.8.3'] |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2021-1390",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1390"
}
},
"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\u5176\u4e2d\u4e00\u4e2a\u8bca\u65ad\u6d4b\u8bd5CLI\u547d\u4ee4\u5b58\u5728\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53d7\u5f71\u54cd\u7684\u8f6f\u4ef6\u5141\u8bb8\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\u4fee\u6539\u53d7\u5f71\u54cd\u8bbe\u5907\u7684\u8fd0\u884c\u65f6\u5185\u5b58\u3002\u672c\u5730\u8ba4\u8bc1\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8986\u76d6\u7cfb\u7edf\u5185\u5b58\u4f4d\u7f6e\uff0c\u5e76\u5728\u53d7\u5f71\u54cd\u8bbe\u5907\u7684\u5e95\u5c42Linux\u64cd\u4f5c\u7cfb\u7edf\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-XE-OFP-6Nezgn7b",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2021-24469",
"openTime": "2021-04-02",
"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\u5176\u4e2d\u4e00\u4e2a\u8bca\u65ad\u6d4b\u8bd5CLI\u547d\u4ee4\u5b58\u5728\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53d7\u5f71\u54cd\u7684\u8f6f\u4ef6\u5141\u8bb8\u5728\u7279\u5b9a\u60c5\u51b5\u4e0b\u4fee\u6539\u53d7\u5f71\u54cd\u8bbe\u5907\u7684\u8fd0\u884c\u65f6\u5185\u5b58\u3002\u672c\u5730\u8ba4\u8bc1\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8986\u76d6\u7cfb\u7edf\u5185\u5b58\u4f4d\u7f6e\uff0c\u5e76\u5728\u53d7\u5f71\u54cd\u8bbe\u5907\u7684\u5e95\u5c42Linux\u64cd\u4f5c\u7cfb\u7edf\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 IOS XE\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": [
"Cisco IOS XE 16.9.1",
"Cisco IOS XE 16.9.1a",
"Cisco IOS XE 16.9.1b",
"Cisco IOS XE 16.9.1c",
"Cisco IOS XE 16.9.1d",
"Cisco IOS XE 16.9.1s",
"Cisco IOS XE 16.9.2",
"Cisco IOS XE 16.9.2a",
"Cisco IOS XE 16.9.2s",
"Cisco IOS XE 16.9.3",
"Cisco IOS XE 16.9.3a",
"Cisco IOS XE 16.9.3h",
"Cisco IOS XE 16.9.3s",
"Cisco IOS XE 16.9.4",
"Cisco IOS XE 16.9.4c",
"Cisco IOS XE 16.9.5",
"Cisco IOS XE 16.9.5f",
"Cisco IOS XE 16.9.6",
"Cisco IOS XE 16.10.1",
"Cisco IOS XE 16.10.1a",
"Cisco IOS XE 16.10.1b",
"Cisco IOS XE 16.10.1c",
"Cisco IOS XE 16.10.1d",
"Cisco IOS XE 16.10.1e",
"Cisco IOS XE 16.10.1f",
"Cisco IOS XE 16.10.2",
"Cisco IOS XE 16.10.3",
"Cisco IOS XE 16.11.1",
"Cisco IOS XE 16.11.1a",
"Cisco IOS XE 16.11.1b",
"Cisco IOS XE 16.11.1c",
"Cisco IOS XE 16.11.1s",
"Cisco IOS XE 16.11.2",
"Cisco IOS XE 16.12.1",
"Cisco IOS XE 16.12.1a",
"Cisco IOS XE 16.12.1c",
"Cisco IOS XE 16.12.1s",
"Cisco IOS XE 16.12.1t",
"Cisco IOS XE 16.12.1w",
"Cisco IOS XE 16.12.1x",
"Cisco IOS XE 16.12.1y",
"Cisco IOS XE 16.12.1z",
"Cisco IOS XE 16.12.1za",
"Cisco IOS XE 16.12.2",
"Cisco IOS XE 16.12.2a",
"Cisco IOS XE 16.12.2s",
"Cisco IOS XE 16.12.2t",
"Cisco IOS XE 16.12.3",
"Cisco IOS XE 16.12.3a",
"Cisco IOS XE 16.12.3s",
"Cisco IOS XE 16.12.4",
"Cisco IOS XE 16.12.4a",
"Cisco IOS XE 17.1.1",
"Cisco IOS XE 17.1.1a",
"Cisco IOS XE 17.1.1s",
"Cisco IOS XE 17.1.1t",
"Cisco IOS XE 17.1.2",
"Cisco IOS XE 17.2.1",
"Cisco IOS XE 17.2.1a",
"Cisco IOS XE 17.2.1r",
"Cisco IOS XE 17.2.2",
"Cisco IOS XE 17.2.3",
"Cisco IOS XE 16.8.1",
"Cisco IOS XE 16.8.1a",
"Cisco IOS XE 16.8.1b",
"Cisco IOS XE 16.8.1c",
"Cisco IOS XE 16.8.1d",
"Cisco IOS XE 16.8.1e",
"Cisco IOS XE 16.8.1s",
"Cisco IOS XE 16.8.2",
"Cisco IOS XE 16.8.3"
]
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1390",
"serverity": "\u9ad8",
"submitTime": "2021-03-25",
"title": "Cisco IOS XE\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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