Vulnerability-Lookup

CNVD-2021-103092

Vulnerability from cnvd - Published: 2021-12-29

Title

Cisco Small Business RV Series Routers命令注入漏洞

Description

Cisco Small Business RV Series Routers是美国思科（Cisco）公司的一款RV系列路由器。 Cisco Small Business RV Series Routers存在命令注入漏洞，该漏洞源于网络系统或产品未对输入的数据进行正确的验证。具有管理权限的经过身份验证的远程攻击者将任意命令注入底层操作系统并使用root级别权限执行它们。

Severity

高

Patch Name

Cisco Small Business RV Series Routers命令注入漏洞的补丁

Patch Description

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-sbrv-cmdinjection-Z5cWFdK

Reference

https://www.auscert.org.au/bulletins/ESB-2021.3677

Impacted products

Name
Cisco Small Business RV Series Routers null

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-40120",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-40120"
    }
  },
  "description": "Cisco Small Business RV Series Routers\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3eRV\u7cfb\u5217\u8def\u7531\u5668\u3002\n\nCisco Small Business RV Series Routers\u5b58\u5728\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u5bf9\u8f93\u5165\u7684\u6570\u636e\u8fdb\u884c\u6b63\u786e\u7684\u9a8c\u8bc1\u3002\u5177\u6709\u7ba1\u7406\u6743\u9650\u7684\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u5c06\u4efb\u610f\u547d\u4ee4\u6ce8\u5165\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u5e76\u4f7f\u7528root\u7ea7\u522b\u6743\u9650\u6267\u884c\u5b83\u4eec\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-103092",
  "openTime": "2021-12-29",
  "patchDescription": "Cisco Small Business RV Series Routers\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3eRV\u7cfb\u5217\u8def\u7531\u5668\u3002\r\n\r\nCisco Small Business RV Series Routers\u5b58\u5728\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u5bf9\u8f93\u5165\u7684\u6570\u636e\u8fdb\u884c\u6b63\u786e\u7684\u9a8c\u8bc1\u3002\u5177\u6709\u7ba1\u7406\u6743\u9650\u7684\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u5c06\u4efb\u610f\u547d\u4ee4\u6ce8\u5165\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u5e76\u4f7f\u7528root\u7ea7\u522b\u6743\u9650\u6267\u884c\u5b83\u4eec\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 Small Business RV Series Routers\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Small Business RV Series Routers null"
  },
  "referenceLink": "https://www.auscert.org.au/bulletins/ESB-2021.3677",
  "serverity": "\u9ad8",
  "submitTime": "2021-11-05",
  "title": "Cisco Small Business RV Series Routers\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2021-40120 (GCVE-0-2021-40120)

Vulnerability from cvelistv5 – Published: 2021-11-04 15:35 – Updated: 2024-11-07 21:43

Title

Cisco Small Business RV Series Routers Command Injection Vulnerability

Summary

A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an authenticated, remote attacker with administrative privileges to inject arbitrary commands into the underlying operating system and execute them using root-level privileges. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious input to a specific field in the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system as a user with root-level privileges.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-07 21:42 UTC

CWE

CWE-20

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 Small Business RV Series Router Firmware	Affected: n/a

Date Public

2021-11-03 00:00

Show details on NVD website

JSON

To clipboard

{
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          "dateUpdated": "2024-08-04T02:27:31.582Z",
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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sbrv-cmdinjection-Z5cWFdK"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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                "id": "CVE-2021-40120",
                "options": [
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-07T21:42:44.419677Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2024-11-07T21:43:34.339Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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      "exploits": [
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      "metrics": [
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            "baseScore": 6.5,
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            "confidentialityImpact": "HIGH",
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            "userInteraction": "NONE",
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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.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2021-103092

CVE-2021-40120 (GCVE-0-2021-40120)

Tags

Sightings

Nomenclature

Related by attack behaviour