GHSA-CGP8-4M63-FHH5

Vulnerability from github – Published: 2022-12-03 15:30 – Updated: 2022-12-06 16:19
VLAI
Summary
Apache Commons Net vulnerable to information leakage via malicious server
Details

Prior to Apache Commons Net 3.9.0, Net's FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "commons-net:commons-net"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-37533"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-05T23:21:08Z",
    "nvd_published_at": "2022-12-03T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Prior to Apache Commons Net 3.9.0, Net\u0027s FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client.\nThe default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711.\n",
  "id": "GHSA-cgp8-4m63-fhh5",
  "modified": "2022-12-06T16:19:45Z",
  "published": "2022-12-03T15:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37533"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/commons-net/commit/4fe1bae56e53f32756b1ca3296f3dd2c45e3e060"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/apache/commons-net"
    },
    {
      "type": "WEB",
      "url": "https://issues.apache.org/jira/browse/NET-711"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00038.html"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5307"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/12/03/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Apache Commons Net vulnerable to information leakage via malicious server"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.