#VU23619 Deserialization of Untrusted Data in Cacti - CVE-2019-17358

Vulnerability identifier: #VU23619

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-17358

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cacti
Web applications / Other software

Vendor: The Cacti Group, Inc.

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data in lib/functions.php. A remote attacker can pass specially crafted data to the application and execute arbitrary PHP code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cacti: 1.0.0 - 1.2.7

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External links
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2019-17358
https://github.com/Cacti/cacti/blob/79f29cddb5eb05cbaff486cd634285ef1fed9326/lib/functions.php#L3109
https://github.com/Cacti/cacti/commit/adf221344359f5b02b8aed43dfb6b33ae5d708c8
https://github.com/Cacti/cacti/issues/3026
https://lists.debian.org/debian-lts-announce/2019/12/msg00014.html
https://people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-17358.html
https://www.darkmatter.ae/xen1thlabs/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.