Vulnerability-Lookup

CNVD-2021-26113

Vulnerability from cnvd - Published: 2021-04-09

Title

Cisco IOS XR命令注入漏洞

Description

Cisco IOS XR软件是用于服务提供商网络的模块化和完全分布式的网络操作系统。 Cisco IOS XR 7.3.1之前版本的CLI存在命令注入漏洞。该漏洞源于对用户提供的命令的输入验证不足。攻击者可通过向受影响的命令提交特制输入利用该漏洞以root权限在底层Linux OS上执行命令。

Severity

中

Patch Name

Cisco IOS XR命令注入漏洞的补丁

Patch Description

Cisco IOS XR软件是用于服务提供商网络的模块化和完全分布式的网络操作系统。 Cisco IOS XR 7.3.1之前版本的CLI存在命令注入漏洞。该漏洞源于对用户提供的命令的输入验证不足。攻击者可通过向受影响的命令提交特制输入利用该漏洞以root权限在底层Linux OS上执行命令。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

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-xr-cmdinj-vsKGherc

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-1485

Impacted products

Name
Cisco Cisco IOS XR <7.3.1

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1485",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1485"
    }
  },
  "description": "Cisco IOS XR\u8f6f\u4ef6\u662f\u7528\u4e8e\u670d\u52a1\u63d0\u4f9b\u5546\u7f51\u7edc\u7684\u6a21\u5757\u5316\u548c\u5b8c\u5168\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco IOS XR 7.3.1\u4e4b\u524d\u7248\u672c\u7684CLI\u5b58\u5728\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u7528\u6237\u63d0\u4f9b\u7684\u547d\u4ee4\u7684\u8f93\u5165\u9a8c\u8bc1\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u53d7\u5f71\u54cd\u7684\u547d\u4ee4\u63d0\u4ea4\u7279\u5236\u8f93\u5165\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5root\u6743\u9650\u5728\u5e95\u5c42Linux OS\u4e0a\u6267\u884c\u547d\u4ee4\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-xr-cmdinj-vsKGherc",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-26113",
  "openTime": "2021-04-09",
  "patchDescription": "Cisco IOS XR\u8f6f\u4ef6\u662f\u7528\u4e8e\u670d\u52a1\u63d0\u4f9b\u5546\u7f51\u7edc\u7684\u6a21\u5757\u5316\u548c\u5b8c\u5168\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XR 7.3.1\u4e4b\u524d\u7248\u672c\u7684CLI\u5b58\u5728\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u7528\u6237\u63d0\u4f9b\u7684\u547d\u4ee4\u7684\u8f93\u5165\u9a8c\u8bc1\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u53d7\u5f71\u54cd\u7684\u547d\u4ee4\u63d0\u4ea4\u7279\u5236\u8f93\u5165\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5root\u6743\u9650\u5728\u5e95\u5c42Linux OS\u4e0a\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 XR\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Cisco IOS XR \u003c7.3.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1485",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-08",
  "title": "Cisco IOS XR\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2021-1485 (GCVE-0-2021-1485)

Vulnerability from cvelistv5 – Published: 2021-04-08 04:07 – Updated: 2024-11-08 23:26

Title

Cisco IOS XR Software Command Injection Vulnerability

Summary

A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges on the underlying Linux operating system (OS) of an affected device. This vulnerability is due to insufficient input validation of commands that are supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to an affected command. A successful exploit could allow the attacker to execute commands on the underlying Linux OS with root privileges.

Severity

6.6 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-08 20:45 UTC

CWE

CWE-88

Assigner

cisco mitre root Scorecard

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 XR Software	Affected: n/a

Date Public

2021-04-07 00:00

Show details on NVD website

JSON

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{
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          "dateUpdated": "2024-08-03T16:11:17.330Z",
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        "references": [
          {
            "name": "20210407 Cisco IOS XR Software Command Injection Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xr-cmdinj-vsKGherc"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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                "id": "CVE-2021-1485",
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T20:45:23.048764Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2024-11-08T23:26:01.123Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "product": "Cisco IOS XR Software",
          "vendor": "Cisco",
          "versions": [
            {
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              "version": "n/a"
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      "metrics": [
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            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
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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.

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.

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CNVD-2021-26113

CVE-2021-1485 (GCVE-0-2021-1485)

Tags

Sightings

Nomenclature

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