Vulnerability-Lookup

CNVD-2020-08128

Vulnerability from cnvd - Published: 2020-02-14

Title

DrayTek Vigor系列任意命令执行漏洞

Description

DrayTek Vigor300B是一款企业级路由器。 DrayTek Vigor300B cgi-bin/mainfunction.cgi URI未能正确处理SHELL字符，远程攻击者可以利用该漏洞提交特殊的请求，可以ROOT权限执行任意命令。

Severity

低

Patch Name

DrayTek Vigor系列任意命令执行漏洞的补丁

Patch Description

DrayTek Vigor300B是一款企业级路由器。 DrayTek Vigor300B cgi-bin/mainfunction.cgi URI未能正确处理SHELL字符，远程攻击者可以利用该漏洞提交特殊的请求，可以ROOT权限执行任意命令。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

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://www.draytek.com/

Reference

https://sku11army.blogspot.com/2020/01/draytek-unauthenticated-rce-in-draytek.html

Impacted products

Name
['DrayTek Vigor300B 1.4.4_Beta', 'DrayTek Vigor300B 1.3.3_Beta', 'DrayTek Vigor300B 1.4.2.1_Beta', 'DrayTek Vigor2960 1.3.1_Beta', 'DrayTek Vigor3900 1.4.4_Beta']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8515",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-8515"
    }
  },
  "description": "DrayTek Vigor300B\u662f\u4e00\u6b3e\u4f01\u4e1a\u7ea7\u8def\u7531\u5668\u3002\n\nDrayTek Vigor300B cgi-bin/mainfunction.cgi URI\u672a\u80fd\u6b63\u786e\u5904\u7406SHELL\u5b57\u7b26\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u4ea4\u7279\u6b8a\u7684\u8bf7\u6c42\uff0c\u53ef\u4ee5ROOT\u6743\u9650\u6267\u884c\u4efb\u610f\u547d\u4ee4\u3002",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://www.draytek.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-08128",
  "openTime": "2020-02-14",
  "patchDescription": "DrayTek Vigor300B\u662f\u4e00\u6b3e\u4f01\u4e1a\u7ea7\u8def\u7531\u5668\u3002\r\n\r\nDrayTek Vigor300B cgi-bin/mainfunction.cgi URI\u672a\u80fd\u6b63\u786e\u5904\u7406SHELL\u5b57\u7b26\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u4ea4\u7279\u6b8a\u7684\u8bf7\u6c42\uff0c\u53ef\u4ee5ROOT\u6743\u9650\u6267\u884c\u4efb\u610f\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": "DrayTek Vigor\u7cfb\u5217\u4efb\u610f\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "DrayTek Vigor300B  1.4.4_Beta",
      "DrayTek Vigor300B 1.3.3_Beta",
      "DrayTek Vigor300B 1.4.2.1_Beta",
      "DrayTek Vigor2960 1.3.1_Beta",
      "DrayTek Vigor3900 1.4.4_Beta"
    ]
  },
  "referenceLink": "https://sku11army.blogspot.com/2020/01/draytek-unauthenticated-rce-in-draytek.html",
  "serverity": "\u4f4e",
  "submitTime": "2020-02-04",
  "title": "DrayTek Vigor\u7cfb\u5217\u4efb\u610f\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e"
}

CVE-2020-8515 (GCVE-0-2020-8515)

Vulnerability from cvelistv5 – Published: 2020-02-01 12:36 – Updated: 2025-10-21 23:35

Summary

DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta, and Vigor300B 1.3.3_Beta, 1.4.2.1_Beta, and 1.4.4_Beta devices allow remote code execution as root (without authentication) via shell metacharacters to the cgi-bin/mainfunction.cgi URI. This issue has been fixed in Vigor3900/2960/300B v1.5.1.

Severity

9.8 (Critical)


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

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-04 20:20 UTC

CWE

n/a
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

mitre mitre root

References

4 references

URL	Tags
https://sku11army.blogspot.com/2020/01/draytek-un…	x_refsource_MISC
https://www.draytek.com/about/security-advisory/v…	x_refsource_MISC
http://packetstormsecurity.com/files/156979/DrayT…	x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Show details on NVD website

JSON

To clipboard

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            "url": "https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-router-web-management-page-vulnerability-%28cve-2020-8515%29/"
          },
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            "tags": [
              "x_refsource_MISC",
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        "metrics": [
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              "confidentialityImpact": "HIGH",
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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

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.