Vulnerability-Lookup

CNVD-2022-65337

Vulnerability from cnvd - Published: 2022-09-23

Title

MELAG FTP Server用户枚举漏洞

Description

MELAG FTP Server是德国MELAG公司的一个FTP服务器。 MELAG FTP Server 2.2.0.4版本存在用户枚举漏洞，该漏洞源于程序对于用户和非用户呈现不一样的响应，攻击者可利用此漏洞识别给定用户名是否是注册的FTP用户。

Severity

中

Patch Name

MELAG FTP Server用户枚举漏洞的补丁

Patch Description

MELAG FTP Server是德国MELAG公司的一个FTP服务器。 MELAG FTP Server 2.2.0.4版本存在用户枚举漏洞，该漏洞源于程序对于用户和非用户呈现不一样的响应，攻击者可利用此漏洞识别给定用户名是否是注册的FTP用户。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

厂商已发布了漏洞修复程序，请及时关注更新： https://melag-ftp-server.software.informer.com/

Reference

https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/

Impacted products

Name
MELAG MELAG FTP Server 2.2.0.4

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-41634",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-41634"
    }
  },
  "description": "MELAG FTP Server\u662f\u5fb7\u56fdMELAG\u516c\u53f8\u7684\u4e00\u4e2aFTP\u670d\u52a1\u5668\u3002\n\nMELAG FTP Server 2.2.0.4\u7248\u672c\u5b58\u5728\u7528\u6237\u679a\u4e3e\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5bf9\u4e8e\u7528\u6237\u548c\u975e\u7528\u6237\u5448\u73b0\u4e0d\u4e00\u6837\u7684\u54cd\u5e94\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u8bc6\u522b\u7ed9\u5b9a\u7528\u6237\u540d\u662f\u5426\u662f\u6ce8\u518c\u7684FTP\u7528\u6237\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://melag-ftp-server.software.informer.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-65337",
  "openTime": "2022-09-23",
  "patchDescription": "MELAG FTP Server\u662f\u5fb7\u56fdMELAG\u516c\u53f8\u7684\u4e00\u4e2aFTP\u670d\u52a1\u5668\u3002\r\n\r\nMELAG FTP Server 2.2.0.4\u7248\u672c\u5b58\u5728\u7528\u6237\u679a\u4e3e\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5bf9\u4e8e\u7528\u6237\u548c\u975e\u7528\u6237\u5448\u73b0\u4e0d\u4e00\u6837\u7684\u54cd\u5e94\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u8bc6\u522b\u7ed9\u5b9a\u7528\u6237\u540d\u662f\u5426\u662f\u6ce8\u518c\u7684FTP\u7528\u6237\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": "MELAG FTP Server\u7528\u6237\u679a\u4e3e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "MELAG MELAG FTP Server 2.2.0.4"
  },
  "referenceLink": "https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/",
  "serverity": "\u4e2d",
  "submitTime": "2022-06-28",
  "title": "MELAG FTP Server\u7528\u6237\u679a\u4e3e\u6f0f\u6d1e"
}

CVE-2021-41634 (GCVE-0-2021-41634)

Vulnerability from cvelistv5 – Published: 2022-06-24 11:46 – Updated: 2024-08-04 03:15

Summary

A user enumeration vulnerability in MELAG FTP Server 2.2.0.4 allows an attacker to identify valid FTP usernames.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://www.securesystems.de/blog/advisory-and-ex…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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        ],
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      ],
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      "x_legacyV4Record": {
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  "cveMetadata": {
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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.