Vulnerability-Lookup

CNVD-2021-103408

Vulnerability from cnvd - Published: 2021-12-30

Title

Alkacon OpenCms XML外部实体漏洞

Description

Alkacon OpenCms是一套使用Java语言开发的开源内容管理系统（CMS）。 Alkacon OpenCms存在XML外部实体漏洞，攻击者可通过上传精心制作的SVG文档利用该漏洞从服务器的文件系统中窃取文件。

Severity

中

Patch Name

Alkacon OpenCms XML外部实体漏洞的补丁

Patch Description

Alkacon OpenCms是一套使用Java语言开发的开源内容管理系统（CMS）。 Alkacon OpenCms存在XML外部实体漏洞，攻击者可通过上传精心制作的SVG文档利用该漏洞从服务器的文件系统中窃取文件。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://github.com/alkacon/opencms-core/commit/92e035423aa6967822d343e54392d4291648c0ee

Reference

https://github.com/alkacon/opencms-core/issues/725

Impacted products

Name
['Alkacon Software OpenCms 11.0', 'Alkacon Software OpenCms 11.0.1', 'Alkacon Software OpenCms 11.0.2']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3312"
    }
  },
  "description": "Alkacon OpenCms\u662f\u4e00\u5957\u4f7f\u7528Java\u8bed\u8a00\u5f00\u53d1\u7684\u5f00\u6e90\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\uff08CMS\uff09\u3002\n\nAlkacon OpenCms\u5b58\u5728XML\u5916\u90e8\u5b9e\u4f53\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4e0a\u4f20\u7cbe\u5fc3\u5236\u4f5c\u7684SVG\u6587\u6863\u5229\u7528\u8be5\u6f0f\u6d1e\u4ece\u670d\u52a1\u5668\u7684\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7a83\u53d6\u6587\u4ef6\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://github.com/alkacon/opencms-core/commit/92e035423aa6967822d343e54392d4291648c0ee",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-103408",
  "openTime": "2021-12-30",
  "patchDescription": "Alkacon OpenCms\u662f\u4e00\u5957\u4f7f\u7528Java\u8bed\u8a00\u5f00\u53d1\u7684\u5f00\u6e90\u5185\u5bb9\u7ba1\u7406\u7cfb\u7edf\uff08CMS\uff09\u3002\r\n\r\nAlkacon OpenCms\u5b58\u5728XML\u5916\u90e8\u5b9e\u4f53\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u4e0a\u4f20\u7cbe\u5fc3\u5236\u4f5c\u7684SVG\u6587\u6863\u5229\u7528\u8be5\u6f0f\u6d1e\u4ece\u670d\u52a1\u5668\u7684\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7a83\u53d6\u6587\u4ef6\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": "Alkacon OpenCms XML\u5916\u90e8\u5b9e\u4f53\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Alkacon Software OpenCms 11.0",
      "Alkacon Software OpenCms 11.0.1",
      "Alkacon Software OpenCms 11.0.2"
    ]
  },
  "referenceLink": "https://github.com/alkacon/opencms-core/issues/725",
  "serverity": "\u4e2d",
  "submitTime": "2021-10-11",
  "title": "Alkacon OpenCms XML\u5916\u90e8\u5b9e\u4f53\u6f0f\u6d1e"
}

CVE-2021-3312 (GCVE-0-2021-3312)

Vulnerability from cvelistv5 – Published: 2021-10-08 14:44 – Updated: 2024-08-03 16:53

Summary

An XML external entity (XXE) vulnerability in Alkacon OpenCms 11.0, 11.0.1 and 11.0.2 allows remote authenticated users with edit privileges to exfiltrate files from the server's file system by uploading a crafted SVG document.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://github.com/alkacon/opencms-core/releases	x_refsource_MISC
https://github.com/alkacon/opencms-core/issues/725	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/alkacon/opencms-core/issues/725"
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          "url": "https://github.com/alkacon/opencms-core/releases"
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            "x_refsource_MISC"
          ],
          "url": "https://github.com/alkacon/opencms-core/issues/725"
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      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-3312",
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        },
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            "vendor_data": [
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                      "product_name": "n/a",
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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.