Vulnerability-Lookup

CNVD-2021-22458

Vulnerability from cnvd - Published: 2021-03-26

Title

Cisco IOS XE权限提升漏洞（CNVD-2021-22458）

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SD-WAN的CLI管理存在权限提升漏洞。该漏洞源于该软件处理并发CLI会话的方式存在问题。攻击者可利用该漏洞以root用户身份访问底层操作系统。

Severity

中

Patch Name

Cisco IOS XE权限提升漏洞（CNVD-2021-22458）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SD-WAN的CLI管理存在权限提升漏洞。该漏洞源于该软件处理并发CLI会话的方式存在问题。攻击者可利用该漏洞以root用户身份访问底层操作系统。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-sdwan-clipriv-9TO2QGVp

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-1281

Impacted products

Name
Cisco IOS XE

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1281",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1281"
    }
  },
  "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\u7684SD-WAN\u7684CLI\u7ba1\u7406\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u8f6f\u4ef6\u5904\u7406\u5e76\u53d1CLI\u4f1a\u8bdd\u7684\u65b9\u5f0f\u5b58\u5728\u95ee\u9898\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5root\u7528\u6237\u8eab\u4efd\u8bbf\u95ee\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\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-sdwan-clipriv-9TO2QGVp",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-22458",
  "openTime": "2021-03-26",
  "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\u7684SD-WAN\u7684CLI\u7ba1\u7406\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8be5\u8f6f\u4ef6\u5904\u7406\u5e76\u53d1CLI\u4f1a\u8bdd\u7684\u65b9\u5f0f\u5b58\u5728\u95ee\u9898\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5root\u7528\u6237\u8eab\u4efd\u8bbf\u95ee\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\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\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-22458\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco IOS XE"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1281",
  "serverity": "\u4e2d",
  "submitTime": "2021-03-25",
  "title": "Cisco IOS XE\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-22458\uff09"
}

CVE-2021-1281 (GCVE-0-2021-1281)

Vulnerability from cvelistv5 – Published: 2021-03-24 20:16 – Updated: 2024-11-08 23:31

Title

Cisco IOS XE SD-WAN Software Privilege Escalation Vulnerability

Summary

A vulnerability in CLI management in Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to access the underlying operating system as the root user. This vulnerability is due to the way the software handles concurrent CLI sessions. An attacker could exploit this vulnerability by authenticating to the device as an administrative user and executing a sequence of commands. A successful exploit could allow the attacker to obtain access to the underlying operating system as the root user.

Severity

5.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-08 20:47 UTC

CWE

CWE-399

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 IOS XE Software	Affected: n/a

Date Public

2021-03-24 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:02:56.398Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20210324 Cisco IOS XE SD-WAN Software Privilege Escalation Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-clipriv-9TO2QGVp"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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                "id": "CVE-2021-1281",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T20:47:17.326550Z",
                "version": "2.0.3"
              },
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-08T23:31:17.834Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "versions": [
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        }
      ],
      "exploits": [
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      "metrics": [
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
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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

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CNVD-2021-22458

CVE-2021-1281 (GCVE-0-2021-1281)

Tags

Sightings

Nomenclature

Related by attack behaviour