csaf_certbund - wid-sec-w-2022-2247

wid-sec-w-2022-2247

Vulnerability from csaf_certbund

Published

2022-12-06 23:00

Modified

2023-01-24 23:00

Summary

Cacti: Schwachstelle ermöglicht Codeausführung

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Cacti ist ein grafisches Frontend zur Visualisierung von statistischen Daten, erfasst durch die Round Robin Database rrdtool.

Angriff

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Cacti ausnutzen, um beliebigen Programmcode auszuführen.

Betroffene Betriebssysteme

- UNIX - Linux - Sonstiges

JSON

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{
  "document": {
    "aggregate_severity": {
      "text": "kritisch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Cacti ist ein grafisches Frontend zur Visualisierung von statistischen Daten, erfasst durch die Round Robin Database rrdtool.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Cacti ausnutzen, um beliebigen Programmcode auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- Linux\n- Sonstiges",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2022-2247 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2022/wid-sec-w-2022-2247.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-2247 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-2247"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2023-1675 vom 2023-01-24",
        "url": "https://alas.aws.amazon.com/ALAS-2023-1675.html"
      },
      {
        "category": "external",
        "summary": "Shadowserver Tweet vom 2023-01-07",
        "url": "https://twitter.com/Shadowserver/status/1611700723556786176"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3252 vom 2022-12-31",
        "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00039.html"
      },
      {
        "category": "external",
        "summary": "Github - Unauthenticated Command Injection vom 2022-12-06",
        "url": "https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf"
      }
    ],
    "source_lang": "en-US",
    "title": "Cacti: Schwachstelle erm\u00f6glicht Codeausf\u00fchrung",
    "tracking": {
      "current_release_date": "2023-01-24T23:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:39:27.196+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
        }
      },
      "id": "WID-SEC-W-2022-2247",
      "initial_release_date": "2022-12-06T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2022-12-06T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-01-01T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2023-01-04T23:00:00.000+00:00",
          "number": "3",
          "summary": "Referenz(en) aufgenommen: FEDORA-2023-D4085A681F, FEDORA-2023-788D505DDC"
        },
        {
          "date": "2023-01-08T23:00:00.000+00:00",
          "number": "4",
          "summary": "Exploit-Hinweis aufgenommen"
        },
        {
          "date": "2023-01-10T23:00:00.000+00:00",
          "number": "5",
          "summary": "Korrektur Plattformen"
        },
        {
          "date": "2023-01-24T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Amazon aufgenommen"
        }
      ],
      "status": "final",
      "version": "6"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Open Source Cacti \u003c 1.2.23",
                "product": {
                  "name": "Open Source Cacti \u003c 1.2.23",
                  "product_id": "T025509",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:cacti:cacti:1.2.23"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Open Source Cacti \u003c 1.3.0",
                "product": {
                  "name": "Open Source Cacti \u003c 1.3.0",
                  "product_id": "T025510",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:cacti:cacti:1.3.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Cacti"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-46169",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Cacti. Der Fehler besteht aufgrund einer m\u00f6glichen Befehlsinjektion. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um beliebigen Code auszuf\u00fchren, wenn eine bestimmte Datenquelle f\u00fcr ein \u00fcberwachtes Ger\u00e4t ausgew\u00e4hlt wurde."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "398363"
        ]
      },
      "release_date": "2022-12-06T23:00:00.000+00:00",
      "title": "CVE-2022-46169"
    }
  ]
}

cve-2022-46169

Vulnerability from cvelistv5

Published

2022-12-05 20:48

Modified

2024-08-03 14:24

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

Cacti is an open source platform which provides a robust and extensible operational monitoring and fault management framework for users. In affected versions a command injection vulnerability allows an unauthenticated user to execute arbitrary code on a server running Cacti, if a specific data source was selected for any monitored device. The vulnerability resides in the `remote_agent.php` file. This file can be accessed without authentication. This function retrieves the IP address of the client via `get_client_addr` and resolves this IP address to the corresponding hostname via `gethostbyaddr`. After this, it is verified that an entry within the `poller` table exists, where the hostname corresponds to the resolved hostname. If such an entry was found, the function returns `true` and the client is authorized. This authorization can be bypassed due to the implementation of the `get_client_addr` function. The function is defined in the file `lib/functions.php` and checks serval `$_SERVER` variables to determine the IP address of the client. The variables beginning with `HTTP_` can be arbitrarily set by an attacker. Since there is a default entry in the `poller` table with the hostname of the server running Cacti, an attacker can bypass the authentication e.g. by providing the header `Forwarded-For: <TARGETIP>`. This way the function `get_client_addr` returns the IP address of the server running Cacti. The following call to `gethostbyaddr` will resolve this IP address to the hostname of the server, which will pass the `poller` hostname check because of the default entry. After the authorization of the `remote_agent.php` file is bypassed, an attacker can trigger different actions. One of these actions is called `polldata`. The called function `poll_for_data` retrieves a few request parameters and loads the corresponding `poller_item` entries from the database. If the `action` of a `poller_item` equals `POLLER_ACTION_SCRIPT_PHP`, the function `proc_open` is used to execute a PHP script. The attacker-controlled parameter `$poller_id` is retrieved via the function `get_nfilter_request_var`, which allows arbitrary strings. This variable is later inserted into the string passed to `proc_open`, which leads to a command injection vulnerability. By e.g. providing the `poller_id=;id` the `id` command is executed. In order to reach the vulnerable call, the attacker must provide a `host_id` and `local_data_id`, where the `action` of the corresponding `poller_item` is set to `POLLER_ACTION_SCRIPT_PHP`. Both of these ids (`host_id` and `local_data_id`) can easily be bruteforced. The only requirement is that a `poller_item` with an `POLLER_ACTION_SCRIPT_PHP` action exists. This is very likely on a productive instance because this action is added by some predefined templates like `Device - Uptime` or `Device - Polling Time`. This command injection vulnerability allows an unauthenticated user to execute arbitrary commands if a `poller_item` with the `action` type `POLLER_ACTION_SCRIPT_PHP` (`2`) is configured. The authorization bypass should be prevented by not allowing an attacker to make `get_client_addr` (file `lib/functions.php`) return an arbitrary IP address. This could be done by not honoring the `HTTP_...` `$_SERVER` variables. If these should be kept for compatibility reasons it should at least be prevented to fake the IP address of the server running Cacti. This vulnerability has been addressed in both the 1.2.x and 1.3.x release branches with `1.2.23` being the first release containing the patch.

References

▼	URL	Tags
	https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf	x_refsource_CONFIRM
	https://github.com/Cacti/cacti/commit/7f0e16312dd5ce20f93744ef8b9c3b0f1ece2216	x_refsource_MISC
	https://github.com/Cacti/cacti/commit/a8d59e8fa5f0054aa9c6981b1cbe30ef0e2a0ec9	x_refsource_MISC
	https://github.com/Cacti/cacti/commit/b43f13ae7f1e6bfe4e8e56a80a7cd867cf2db52b	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

Cacti

cacti

Version: < 1.2.23

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:cacti:cacti:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "cacti",
            "vendor": "cacti",
            "versions": [
              {
                "lessThan": "1.2.23",
                "status": "affected",
                "version": "-",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-46169",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-13T17:39:57.218915Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2023-02-16",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-46169"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:16:07.313Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T14:24:03.319Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf"
          },
          {
            "name": "https://github.com/Cacti/cacti/commit/7f0e16312dd5ce20f93744ef8b9c3b0f1ece2216",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Cacti/cacti/commit/7f0e16312dd5ce20f93744ef8b9c3b0f1ece2216"
          },
          {
            "name": "https://github.com/Cacti/cacti/commit/a8d59e8fa5f0054aa9c6981b1cbe30ef0e2a0ec9",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Cacti/cacti/commit/a8d59e8fa5f0054aa9c6981b1cbe30ef0e2a0ec9"
          },
          {
            "name": "https://github.com/Cacti/cacti/commit/b43f13ae7f1e6bfe4e8e56a80a7cd867cf2db52b",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Cacti/cacti/commit/b43f13ae7f1e6bfe4e8e56a80a7cd867cf2db52b"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "cacti",
          "vendor": "Cacti",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.2.23"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Cacti is an open source platform which provides a robust and extensible operational monitoring and fault management framework for users. In affected versions a command injection vulnerability allows an unauthenticated user to execute arbitrary code on a server running Cacti, if a specific data source was selected for any monitored device. The vulnerability resides in the `remote_agent.php` file. This file can be accessed without authentication. This function retrieves the IP address of the client via `get_client_addr` and resolves this IP address to the corresponding hostname via `gethostbyaddr`. After this, it is verified that an entry within the `poller` table exists, where the hostname corresponds to the resolved hostname. If such an entry was found, the function returns `true` and the client is authorized. This authorization can be bypassed due to the implementation of the `get_client_addr` function. The function is defined in the file `lib/functions.php` and checks serval `$_SERVER` variables to determine the IP address of the client. The variables beginning with `HTTP_` can be arbitrarily set by an attacker. Since there is a default entry in the `poller` table with the hostname of the server running Cacti, an attacker can bypass the authentication e.g. by providing the header `Forwarded-For: \u003cTARGETIP\u003e`. This way the function `get_client_addr` returns the IP address of the server running Cacti. The following call to `gethostbyaddr` will resolve this IP address to the hostname of the server, which will pass the `poller` hostname check because of the default entry. After the authorization of the `remote_agent.php` file is bypassed, an attacker can trigger different actions. One of these actions is called `polldata`. The called function `poll_for_data` retrieves a few request parameters and loads the corresponding `poller_item` entries from the database. If the `action` of a `poller_item` equals `POLLER_ACTION_SCRIPT_PHP`, the function `proc_open` is used to execute a PHP script. The attacker-controlled parameter `$poller_id` is retrieved via the function `get_nfilter_request_var`, which allows arbitrary strings. This variable is later inserted into the string passed to `proc_open`, which leads to a command injection vulnerability. By e.g. providing the `poller_id=;id` the `id` command is executed. In order to reach the vulnerable call, the attacker must provide a `host_id` and `local_data_id`, where the `action` of the corresponding `poller_item` is set to `POLLER_ACTION_SCRIPT_PHP`. Both of these ids (`host_id` and `local_data_id`) can easily be bruteforced. The only requirement is that a `poller_item` with an `POLLER_ACTION_SCRIPT_PHP` action exists. This is very likely on a productive instance because this action is added by some predefined templates like `Device - Uptime` or `Device - Polling Time`.\n\nThis command injection vulnerability allows an unauthenticated user to execute arbitrary commands if a `poller_item` with the `action` type `POLLER_ACTION_SCRIPT_PHP` (`2`) is configured. The authorization bypass should be prevented by not allowing an attacker to make `get_client_addr` (file `lib/functions.php`) return an arbitrary IP address. This could be done by not honoring the `HTTP_...` `$_SERVER` variables. If these should be kept for compatibility reasons it should at least be prevented to fake the IP address of the server running Cacti. This vulnerability has been addressed in both the 1.2.x and 1.3.x release branches with `1.2.23` being the first release containing the patch."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-74",
              "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-12-05T20:48:07.852Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf"
        },
        {
          "name": "https://github.com/Cacti/cacti/commit/7f0e16312dd5ce20f93744ef8b9c3b0f1ece2216",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Cacti/cacti/commit/7f0e16312dd5ce20f93744ef8b9c3b0f1ece2216"
        },
        {
          "name": "https://github.com/Cacti/cacti/commit/a8d59e8fa5f0054aa9c6981b1cbe30ef0e2a0ec9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Cacti/cacti/commit/a8d59e8fa5f0054aa9c6981b1cbe30ef0e2a0ec9"
        },
        {
          "name": "https://github.com/Cacti/cacti/commit/b43f13ae7f1e6bfe4e8e56a80a7cd867cf2db52b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Cacti/cacti/commit/b43f13ae7f1e6bfe4e8e56a80a7cd867cf2db52b"
        }
      ],
      "source": {
        "advisory": "GHSA-6p93-p743-35gf",
        "discovery": "UNKNOWN"
      },
      "title": "Unauthenticated Command Injection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-46169",
    "datePublished": "2022-12-05T20:48:07.852Z",
    "dateReserved": "2022-11-28T17:27:19.998Z",
    "dateUpdated": "2024-08-03T14:24:03.319Z",
    "requesterUserId": "c184a3d9-dc98-4c48-a45b-d2d88cf0ac74",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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