Vulnerability-Lookup

CNVD-2020-29578

Vulnerability from cnvd - Published: 2020-05-23

Title

Draytek Vigor3900、Vigor2960和Vigor300B缓冲区溢出漏洞（CNVD-2020-29578）

Description

DrayTek Vigor3900等都是中国台湾居易科技（DrayTek）公司的产品。DrayTek Vigor3900是一款宽带路由器/VPN网关设备。Vigor2960是一款负载平衡路由器和VPN网关设备。Vigor300B是一款负载均衡路由器。 Draytek Vigor3900 1.5.1之前版本、Vigor2960 1.5.1之前版本和Vigor300B 1.5.1之前版本中的/cgi-bin/activate.cgi文件存在缓冲区溢出漏洞，该漏洞源于程序未能正确检查边界。远程攻击者可借助特制HTTP请求利用该漏洞在系统上执行任意代码。

Severity

高

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： http://www.draytek.com.cn/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-10823

Impacted products

Name
['DrayTek Vigor3900 <1.5.1', 'DrayTek Vigor2960 <1.5.1', 'DrayTek Vigor300B <1.5.1']

Show details on source website

JSON

To clipboard

{
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    "cve": {
      "cveNumber": "CVE-2020-10823"
    }
  },
  "description": "DrayTek Vigor3900\u7b49\u90fd\u662f\u4e2d\u56fd\u53f0\u6e7e\u5c45\u6613\u79d1\u6280\uff08DrayTek\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002DrayTek Vigor3900\u662f\u4e00\u6b3e\u5bbd\u5e26\u8def\u7531\u5668/VPN\u7f51\u5173\u8bbe\u5907\u3002Vigor2960\u662f\u4e00\u6b3e\u8d1f\u8f7d\u5e73\u8861\u8def\u7531\u5668\u548cVPN\u7f51\u5173\u8bbe\u5907\u3002Vigor300B\u662f\u4e00\u6b3e\u8d1f\u8f7d\u5747\u8861\u8def\u7531\u5668\u3002\n\nDraytek Vigor3900 1.5.1\u4e4b\u524d\u7248\u672c\u3001Vigor2960 1.5.1\u4e4b\u524d\u7248\u672c\u548cVigor300B 1.5.1\u4e4b\u524d\u7248\u672c\u4e2d\u7684/cgi-bin/activate.cgi\u6587\u4ef6\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u68c0\u67e5\u8fb9\u754c\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236HTTP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttp://www.draytek.com.cn/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-29578",
  "openTime": "2020-05-23",
  "products": {
    "product": [
      "DrayTek Vigor3900 \u003c1.5.1",
      "DrayTek Vigor2960 \u003c1.5.1",
      "DrayTek Vigor300B \u003c1.5.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-10823",
  "serverity": "\u9ad8",
  "submitTime": "2020-03-27",
  "title": "Draytek Vigor3900\u3001Vigor2960\u548cVigor300B\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-29578\uff09"
}

CVE-2020-10823 (GCVE-0-2020-10823)

Vulnerability from cvelistv5 – Published: 2020-03-26 16:04 – Updated: 2025-05-05 17:09

Summary

A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).

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: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 13:31 UTC

CWE

n/a
CWE-787 - Out-of-bounds Write

Assigner

mitre mitre root

References

2 references

URL	Tags
https://slashd.ga/2020/03/draytek-vulnerabilities/	x_refsource_MISC
https://www.draytek.com/about/security-advisory/v…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

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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.