Vulnerability-Lookup

CNVD-2021-37702

Vulnerability from cnvd - Published: 2021-05-28

Title

em-imap信任管理问题漏洞

Description

em-imap是美国Conrad Irwin软件开发者的一款基于EventMachine的IMAP客户端。 em-imap 0.5版本中存在安全漏洞，该漏洞源于程序没有验证TLS服务器凭证的主机名。攻击者可利用该漏洞实施中间人攻击。

Severity

中

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： https://github.com/ConradIrwin/em-imap

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-13163

Impacted products

Name
em-imap em-imap 0.5

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-13163"
    }
  },
  "description": "em-imap\u662f\u7f8e\u56fdConrad Irwin\u8f6f\u4ef6\u5f00\u53d1\u8005\u7684\u4e00\u6b3e\u57fa\u4e8eEventMachine\u7684IMAP\u5ba2\u6237\u7aef\u3002\n\nem-imap 0.5\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u9a8c\u8bc1TLS\u670d\u52a1\u5668\u51ed\u8bc1\u7684\u4e3b\u673a\u540d\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\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\nhttps://github.com/ConradIrwin/em-imap",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-37702",
  "openTime": "2021-05-28",
  "products": {
    "product": "em-imap em-imap 0.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-13163",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-20",
  "title": "em-imap\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-13163 (GCVE-0-2020-13163)

Vulnerability from cvelistv5 – Published: 2020-05-19 21:22 – Updated: 2024-08-04 12:11

Summary

em-imap 0.5 uses the library eventmachine in an insecure way that allows an attacker to perform a man-in-the-middle attack against users of the library. The hostname in a TLS server certificate is not verified.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/ConradIrwin/em-imap/issues/25	x_refsource_MISC
https://securitylab.github.com/advisories/GHSL-20…	x_refsource_MISC

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.