Cacti up to 1.2.24 graphs_new.php unserialize deserialization

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cacti up to 1.2.24. Impacted is the function unserialize of the file graphs_new.php. The manipulation results in deserialization. This vulnerability was named CVE-2023-30534. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cacti up to 1.2.24 (Log Management Software). It has been classified as problematic. Affected is the function unserialize of the file graphs_new.php. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality. CVE summarizes:

Cacti is an open source operational monitoring and fault management framework. There are two instances of insecure deserialization in Cacti version 1.2.24. While a viable gadget chain exists in Cacti’s vendor directory (phpseclib), the necessary gadgets are not included, making them inaccessible and the insecure deserializations not exploitable. Each instance of insecure deserialization is due to using the unserialize function without sanitizing the user input. Cacti has a “safe” deserialization that attempts to sanitize the content and check for specific values before calling unserialize, but it isn’t used in these instances. The vulnerable code lies in graphs_new.php, specifically within the host_new_graphs_save function. 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 presented 09/06/2023 as GHSA-77rf-774j-6h3p. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-30534 since 04/12/2023. There are known technical details, but no exploit is available.

By approaching the search of inurl:graphs_new.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.2.25 eliminates this vulnerability.

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Productinfo

Type

• Log Management Software

Name

• Cacti

Version

• 1.2.0
• 1.2.1
• 1.2.2
• 1.2.3
• 1.2.4
• 1.2.5
• 1.2.6
• 1.2.7
• 1.2.8
• 1.2.9
• 1.2.10
• 1.2.11
• 1.2.12
• 1.2.13
• 1.2.14
• 1.2.15
• 1.2.16
• 1.2.17
• 1.2.18
• 1.2.19
• 1.2.20
• 1.2.21
• 1.2.22
• 1.2.23
• 1.2.24

License

• open-source

Website

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

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