Cacti 1.2.24 SNMP lib/snmp.php os command injection

Summaryinfo

A vulnerability was found in Cacti 1.2.24. It has been rated as critical. This issue affects some unknown processing in the library lib/snmp.php of the component SNMP Handler. The manipulation leads to os command injection. This vulnerability is uniquely identified as CVE-2023-39362. The attack is possible to be carried out remotely. Moreover, an exploit is present. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cacti 1.2.24 (Log Management Software) and classified as critical. This issue affects an unknown function in the library lib/snmp.php of the component SNMP Handler. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Cacti is an open source operational monitoring and fault management framework. In Cacti 1.2.24, under certain conditions, an authenticated privileged user, can use a malicious string in the SNMP options of a Device, performing command injection and obtaining remote code execution on the underlying server. The `lib/snmp.php` file has a set of functions, with similar behavior, that accept in input some variables and place them into an `exec` call without a proper escape or validation. This issue has been addressed in version 1.2.25. Users are advised to upgrade. There are no known workarounds for this vulnerability.

The weakness was disclosed 09/06/2023 as GHSA-g6ff-58cj-x3cp. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2023-39362 since 07/28/2023. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:lib/snmp.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.2.25 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (51740). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Log Management Software

Name

• Cacti

Version

• 1.2.24

License

• open-source

Website

• Product: https://github.com/Cacti/cacti/

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Be aware that VulDB is the high quality source for vulnerability data.

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