Vulnerability-Lookup

CNVD-2021-73651

Vulnerability from cnvd - Published: 2021-09-26

Title

PHPMailer代码问题漏洞

Description

PHPMailer是一个用于发送电子邮件的PHP类库。 PHPMailer存在代码问题漏洞，该漏洞允许通过具有UNC路径名的addAttachment通过Phar反序列化进行对象注入。目前没有详细的漏洞细节提供。

Severity

高

Patch Name

PHPMailer代码问题漏洞的补丁

Patch Description

PHPMailer是一个用于发送电子邮件的PHP类库。 PHPMailer存在代码问题漏洞，该漏洞允许通过具有UNC路径名的addAttachment通过Phar反序列化进行对象注入。目前没有详细的漏洞细节提供。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9

Reference

https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9

Impacted products

Name
PHPMailer PHPMailer >=6.1.8，<=6.4.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-36326",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-36326"
    }
  },
  "description": "PHPMailer\u662f\u4e00\u4e2a\u7528\u4e8e\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u7684PHP\u7c7b\u5e93\u3002\n\nPHPMailer\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u901a\u8fc7\u5177\u6709UNC\u8def\u5f84\u540d\u7684addAttachment\u901a\u8fc7Phar\u53cd\u5e8f\u5217\u5316\u8fdb\u884c\u5bf9\u8c61\u6ce8\u5165\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-73651",
  "openTime": "2021-09-26",
  "patchDescription": "PHPMailer\u662f\u4e00\u4e2a\u7528\u4e8e\u53d1\u9001\u7535\u5b50\u90ae\u4ef6\u7684PHP\u7c7b\u5e93\u3002\r\n\r\nPHPMailer\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u5141\u8bb8\u901a\u8fc7\u5177\u6709UNC\u8def\u5f84\u540d\u7684addAttachment\u901a\u8fc7Phar\u53cd\u5e8f\u5217\u5316\u8fdb\u884c\u5bf9\u8c61\u6ce8\u5165\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "PHPMailer\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "PHPMailer PHPMailer \u003e=6.1.8\uff0c\u003c=6.4.0"
  },
  "referenceLink": "https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9",
  "serverity": "\u9ad8",
  "submitTime": "2021-06-04",
  "title": "PHPMailer\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-36326 (GCVE-0-2020-36326)

Vulnerability from cvelistv5 – Published: 2021-04-28 02:21 – Updated: 2024-08-04 17:23

Summary

PHPMailer 6.1.8 through 6.4.0 allows object injection through Phar Deserialization via addAttachment with a UNC pathname. NOTE: this is similar to CVE-2018-19296, but arose because 6.1.8 fixed a functionality problem in which UNC pathnames were always considered unreadable by PHPMailer, even in safe contexts. As an unintended side effect, this fix eliminated the code that blocked addAttachment exploitation.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://github.com/PHPMailer/PHPMailer/commit/e2e…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T17:23:10.518Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9"
          },
          {
            "name": "FEDORA-2021-b21bbfa198",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/"
          },
          {
            "name": "FEDORA-2021-ecf4fed550",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "PHPMailer 6.1.8 through 6.4.0 allows object injection through Phar Deserialization via addAttachment with a UNC pathname. NOTE: this is similar to CVE-2018-19296, but arose because 6.1.8 fixed a functionality problem in which UNC pathnames were always considered unreadable by PHPMailer, even in safe contexts. As an unintended side effect, this fix eliminated the code that blocked addAttachment exploitation."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "n/a",
              "lang": "en",
              "type": "text"
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-12T17:06:28.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/PHPMailer/PHPMailer/commit/e2e07a355ee8ff36aba21d0242c5950c56e4c6f9"
        },
        {
          "name": "FEDORA-2021-b21bbfa198",
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            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT/"
        },
        {
          "name": "FEDORA-2021-ecf4fed550",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/"
        }
      ],
      "x_legacyV4Record": {
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          "ID": "CVE-2020-36326",
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        },
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            }
          ]
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        "problemtype": {
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            },
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            },
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              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B/"
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  "cveMetadata": {
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    "datePublished": "2021-04-28T02:21:53.000Z",
    "dateReserved": "2021-04-28T00:00:00.000Z",
    "dateUpdated": "2024-08-04T17:23:10.518Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1"
}

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.