GHSA-4G76-W3XW-2X6W

Vulnerability from github – Published: 2023-03-14 18:03 – Updated: 2023-03-14 18:03
VLAI?
Summary
Full authentication bypass if SASL authorization username is specified
Details

Impact

maddy 0.2.0 - 0.6.2 allows a full authentication bypass if SASL authorization username is specified when using the PLAIN authentication mechanisms. Instead of validating the specified authorization username, it is accepted as is after checking the credentials for the authentication username.

Patches

maddy 0.6.3 includes the fix for the bug.

Workarounds

There is no way to fix the issue without upgrading.

References

  • Commit that introduced the vulnerable code: https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399a
  • Fix: https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9c
Severity ?
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/foxcpp/maddy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.2.0"
            },
            {
              "fixed": "0.6.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27582"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-14T18:03:22Z",
    "nvd_published_at": "2023-03-13T22:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nmaddy 0.2.0 - 0.6.2 allows a full authentication bypass if SASL authorization username is specified when using the PLAIN authentication mechanisms. Instead of validating the specified authorization username, it is accepted as is after checking the credentials for the authentication username.\n\n### Patches\n\nmaddy 0.6.3 includes the fix for the bug. \n\n### Workarounds\n\nThere is no way to fix the issue without upgrading.\n\n### References\n\n* Commit that introduced the vulnerable code: https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399a\n* Fix: https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9c\n",
  "id": "GHSA-4g76-w3xw-2x6w",
  "modified": "2023-03-14T18:03:22Z",
  "published": "2023-03-14T18:03:22Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/foxcpp/maddy/security/advisories/GHSA-4g76-w3xw-2x6w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27582"
    },
    {
      "type": "WEB",
      "url": "https://github.com/foxcpp/maddy/commit/55a91a37b71210f34f98f4d327c30308fe24399a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/foxcpp/maddy/commit/9f58cb64b39cdc01928ec463bdb198c4c2313a9c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/foxcpp/maddy"
    },
    {
      "type": "WEB",
      "url": "https://github.com/foxcpp/maddy/releases/tag/v0.6.3"
    }
  ],
  "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:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Full authentication bypass if SASL authorization username is specified"
}


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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.
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  • 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.