Advisory Details

August 24th, 2023

HP Color LaserJet Pro M479fdw ledm_advanced Heap-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2023-27973
CVSS SCORE	8.8, AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS	HP
AFFECTED PRODUCTS	Color LaserJet Pro M479fdw
VULNERABILITY DETAILS	This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of HP Color LaserJet Pro M479fdw printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ExportFile handler. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
ADDITIONAL DETAILS	HP has issued an update to correct this vulnerability. More details can be found at: https://support.hp.com/us-en/document/ish_7920137-7920161-16/hpsbpi03841
DISCLOSURE TIMELINE	2023-01-26 - Vulnerability reported to vendor 2023-08-24 - Coordinated public release of advisory
CREDIT	Angelboy (@scwuaptx) from DEVCORE Research Team

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