CVE-2023-30534

Public Exploit
Insecure Deserialization in Cacti

Description

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 38.72% Top 5%
Vendor Advisory github.com
Affected: Cacti cacti
Published at:
Updated at:

References

Link Tags
https://github.com/Cacti/cacti/security/advisories/GHSA-77rf-774j-6h3p vendor advisory exploit
https://www.fastly.com/blog/cve-2023-30534-insecure-deserialization-in-cacti-prior-to-1-2-25 exploit
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WZGB2UXJEUYWWA6IWVFQ3ZTP22FIHMGN/ mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CFH3J2WVBKY4ZJNMARVOWJQK6PSLPHFH/ mailing list
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOQFYGLZBAWT4AWNMO7DU73QXWPXTCKH/ mailing list

Frequently Asked Questions

What is the severity of CVE-2023-30534?
CVE-2023-30534 has been scored as a medium severity vulnerability.
How to fix CVE-2023-30534?
To fix CVE-2023-30534, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-30534 being actively exploited in the wild?
It is possible that CVE-2023-30534 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~39% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-30534?
CVE-2023-30534 affects Cacti cacti.
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