Vulnerability-Lookup

CNVD-2020-61019

Vulnerability from cnvd - Published: 2020-11-07

Title

Cisco SD-WAN vEdge输入验证错误漏洞

Description

Cisco SD-WAN vEdge是美国思科（Cisco）公司的是一款路由器。该设备可为思科SD-WAN解决方案提供基本WAN，安全性和多云功能。 Cisco SD-WAN vEdge 存在输入验证错误漏洞，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。攻击者可以通过制作具有特定特征的恶意TCP数据包并将其发送到目标设备来利用此漏洞绕过L3和L4流量过滤器，并将任意数据包注入网络。

Severity

中

Patch Name

Cisco SD-WAN vEdge输入验证错误漏洞的补丁

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-cedge-filt-bypass-Y6wZMqm4

Reference

https://www.auscert.org.au/bulletins/ESB-2020.3813/

Impacted products

Name
Cisco Cisco SD-WAN vEdge

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3444",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3444"
    }
  },
  "description": "Cisco SD-WAN vEdge\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u662f\u4e00\u6b3e\u8def\u7531\u5668\u3002\u8be5\u8bbe\u5907\u53ef\u4e3a\u601d\u79d1SD-WAN\u89e3\u51b3\u65b9\u6848\u63d0\u4f9b\u57fa\u672cWAN\uff0c\u5b89\u5168\u6027\u548c\u591a\u4e91\u529f\u80fd\u3002\n\nCisco SD-WAN vEdge \u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\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\u653b\u51fb\u8005\u53ef\u4ee5\u901a\u8fc7\u5236\u4f5c\u5177\u6709\u7279\u5b9a\u7279\u5f81\u7684\u6076\u610fTCP\u6570\u636e\u5305\u5e76\u5c06\u5176\u53d1\u9001\u5230\u76ee\u6807\u8bbe\u5907\u6765\u5229\u7528\u6b64\u6f0f\u6d1e\u7ed5\u8fc7L3\u548cL4\u6d41\u91cf\u8fc7\u6ee4\u5668\uff0c\u5e76\u5c06\u4efb\u610f\u6570\u636e\u5305\u6ce8\u5165\u7f51\u7edc\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-cedge-filt-bypass-Y6wZMqm4",
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  "number": "CNVD-2020-61019",
  "openTime": "2020-11-07",
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  "patchName": "Cisco SD-WAN vEdge\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Cisco SD-WAN vEdge"
  },
  "referenceLink": "https://www.auscert.org.au/bulletins/ESB-2020.3813/",
  "serverity": "\u4e2d",
  "submitTime": "2020-11-05",
  "title": "Cisco SD-WAN vEdge\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-3444 (GCVE-0-2020-3444)

Vulnerability from cvelistv5 – Published: 2020-11-06 18:16 – Updated: 2024-11-13 17:43

Title

Cisco SD-WAN Software Packet Filtering Bypass Vulnerability

Summary

A vulnerability in the packet filtering features of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a targeted device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet into the network.

Severity

5.8 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-13 17:12 UTC

CWE

CWE-20

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 431 records in the last 180 days details

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 SD-WAN Solution	Affected: n/a

Date Public

2020-11-04 00:00

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "providerMetadata": {
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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cedge-filt-bypass-Y6wZMqm4"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
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                "id": "CVE-2020-3444",
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-13T17:12:07.890869Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    "cna": {
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      "exploits": [
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      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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        "affects": {
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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

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.

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