GHSA-Q2RQ-QGCF-M22W

Vulnerability from github – Published: 2022-05-14 00:57 – Updated: 2023-08-03 22:44
VLAI
Summary
web2py remote code execution via hardcoded encryption key in session.connect function
Details

The sample web application in web2py before 2.14.2 might allow remote attackers to execute arbitrary code via vectors involving use of a hardcoded encryption key when calling the session.connect function.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "web2py"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.14.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-3953"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-798"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-03T22:44:35Z",
    "nvd_published_at": "2018-02-06T18:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "The sample web application in web2py before 2.14.2 might allow remote attackers to execute arbitrary code via vectors involving use of a hardcoded encryption key when calling the `session.connect` function.",
  "id": "GHSA-q2rq-qgcf-m22w",
  "modified": "2023-08-03T22:44:35Z",
  "published": "2022-05-14T00:57:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-3953"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/issues/1205"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/commit/9706d125b42481178d2b423de245f5d2faadbf40"
    },
    {
      "type": "WEB",
      "url": "https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/web2py/web2py"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/blob/R-2.14.1/applications/examples/models/session.py"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4030-1"
    }
  ],
  "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": "web2py remote code execution via hardcoded encryption key in session.connect function"
}


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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

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.