GHSA-7W4P-72J7-V7C2

Vulnerability from github – Published: 2020-03-05 22:08 – Updated: 2021-08-19 19:57
VLAI?
Summary
Phar object injection in PHPMailer
Details

PHPMailer versions prior to 6.0.6 and 5.2.27 are vulnerable to an object injection attack by passing phar:// paths into addAttachment() and other functions that may receive unfiltered local paths, possibly leading to RCE. See this article for more info on this type of vulnerability. Mitigated by blocking the use of paths containing URL-protocol style prefixes such as phar://. Reported by Sehun Oh of cyberone.kr.

Impact

Object injection, possible remote code execution

Patches

Fixed in 6.0.6 and 5.2.27

Workarounds

Validate and sanitise user input before using.

References

https://nvd.nist.gov/vuln/detail/CVE-2018-19296

For more information

If you have any questions or comments about this advisory: * Open a private issue in the PHPMailer project

Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpmailer/phpmailer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.2.27"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpmailer/phpmailer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0"
            },
            {
              "fixed": "6.0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-19296"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321",
      "CWE-502",
      "CWE-915"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-03-05T22:08:10Z",
    "nvd_published_at": "2018-11-16T09:29:00Z",
    "severity": "HIGH"
  },
  "details": "PHPMailer versions prior to 6.0.6 and 5.2.27 are vulnerable to an object injection attack by passing phar:// paths into `addAttachment()` and other functions that may receive unfiltered local paths, possibly leading to RCE. See [this article](https://knasmueller.net/5-answers-about-php-phar-exploitation) for more info on this type of vulnerability. Mitigated by blocking the use of paths containing URL-protocol style prefixes such as `phar://`. Reported by Sehun Oh of cyberone.kr.\n\n### Impact\nObject injection, possible remote code execution\n\n### Patches\nFixed in 6.0.6 and 5.2.27\n\n### Workarounds\nValidate and sanitise user input before using.\n\n### References\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-19296\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open a private issue in [the PHPMailer project](https://github.com/PHPMailer/PHPMailer)",
  "id": "GHSA-7w4p-72j7-v7c2",
  "modified": "2021-08-19T19:57:58Z",
  "published": "2020-03-05T22:08:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/PHPMailer/PHPMailer/security/advisories/GHSA-7w4p-72j7-v7c2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19296"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2018-19296.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.27"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPMailer/PHPMailer/releases/tag/v6.0.6"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00020.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3B5WDPGUFNPG4NAZ6G4BZX43BKLAVA5B"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KPU66INRFY5BQ3ESVPRUXJR4DXQAFJVT"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4351"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Phar object injection in PHPMailer"
}


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  • 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.