cnvd - cnvd-2023-27583

cnvd-2023-27583

Vulnerability from cnvd

Title: Cacti存在命令执行漏洞

Description:

Cacti是一套基于PHP，MySQL，SNMP及RRDTool开发的网络流量监测图形分析工具。

Cacti存在命令执行漏洞，攻击者可利用该漏洞执行任意命令。

Severity: 高

Patch Name: Cacti存在命令执行漏洞的补丁

Patch Description:

Cacti是一套基于PHP,MySQL,SNMP及RRDTool开发的网络流量监测图形分析工具。

Cacti存在命令执行漏洞，攻击者可利用该漏洞执行任意命令。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/Cacti/cacti/security/advisories/GHSA-6p93-p743-35gf

Impacted products

Name
The Cacti Group Cacti 1.2.22

Show details on source website

JSON

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-46169"
    }
  },
  "description": "Cacti\u662f\u4e00\u5957\u57fa\u4e8ePHP\uff0cMySQL\uff0cSNMP\u53caRRDTool\u5f00\u53d1\u7684\u7f51\u7edc\u6d41\u91cf\u76d1\u6d4b\u56fe\u5f62\u5206\u6790\u5de5\u5177\u3002\n\nCacti\u5b58\u5728\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u547d\u4ee4\u3002",
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  "number": "CNVD-2023-27583",
  "openTime": "2023-04-08",
  "patchDescription": "Cacti\u662f\u4e00\u5957\u57fa\u4e8ePHP,MySQL,SNMP\u53caRRDTool\u5f00\u53d1\u7684\u7f51\u7edc\u6d41\u91cf\u76d1\u6d4b\u56fe\u5f62\u5206\u6790\u5de5\u5177\u3002\r\n\r\nCacti\u5b58\u5728\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u547d\u4ee4\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
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  "products": {
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  "serverity": "\u9ad8",
  "submitTime": "2023-02-22",
  "title": "Cacti\u5b58\u5728\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e"
}

CVE-2022-46169 (GCVE-0-2022-46169)

Vulnerability from cvelistv5

Published

2022-12-05 20:48

Modified

2025-07-30 01:37

Severity ?

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

CWE

CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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

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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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