ghsa-4pc3-96mx-wwc8
Vulnerability from github
Published
2020-03-05 22:09
Modified
2023-09-06 13:48
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Remote code execution in PHPMailer
Details

Impact

The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code by leveraging improper interaction between the escapeshellarg function and internal escaping performed in the mail function in PHP. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-10033.

This issue really emphasises that it's worth avoiding the built-in PHP mail() function entirely.

Patches

Fixed in 5.2.20

Workarounds

Send via SMTP to localhost instead of calling the mail() function.

References

https://nvd.nist.gov/vuln/detail/CVE-2016-10045 See also https://nvd.nist.gov/vuln/detail/CVE-2016-10033

For more information

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

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpmailer/phpmailer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.2.20"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-10045"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-77"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-03-05T22:06:01Z",
    "nvd_published_at": "2016-12-30T19:59:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\nThe `isMail` transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the `mail` command and consequently execute arbitrary code by leveraging improper interaction between the `escapeshellarg` function and internal escaping performed in the mail function in PHP. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-10033.\n\nThis issue really emphasises that it\u0026#39;s worth avoiding the built-in PHP `mail()` function entirely.\n\n### Patches\nFixed in 5.2.20\n\n### Workarounds\nSend via SMTP to localhost instead of calling the `mail()` function.\n\n### References\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-10045\nSee also https://nvd.nist.gov/vuln/detail/CVE-2016-10033\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-4pc3-96mx-wwc8",
  "modified": "2023-09-06T13:48:23Z",
  "published": "2020-03-05T22:09:14Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/PHPMailer/PHPMailer/security/advisories/GHSA-4pc3-96mx-wwc8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10045"
    },
    {
      "type": "WEB",
      "url": "https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2016-10045.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/PHPMailer/PHPMailer"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.20"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities"
    },
    {
      "type": "WEB",
      "url": "https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10045-Vuln-Patch-Bypass.html"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/40969"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/40986"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/42221"
    },
    {
      "type": "WEB",
      "url": "http://openwall.com/lists/oss-security/2016/12/28/1"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/140286/PHPMailer-Remote-Code-Execution.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2016/Dec/81"
    },
    {
      "type": "WEB",
      "url": "http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/539967/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/95130"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1037533"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Remote code execution in PHPMailer"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.