Critical RCE Lexmark Printer Bug Has Public Exploit


Thread author
Staff Member
Malware Hunter
Jul 27, 2015
A critical security vulnerability allowing remote code execution (RCE) affects more than 120 different Lexmark printer models, the manufacturer warned this week.

And, there's proof of concept (PoC) exploit code circulating publicly, it added - though so far, in-the-wild attacks have yet to materialize. The bug ( CVE-2023-23560 ), which carries a score of 9 out of 10 on the CVSS vulnerability-severity scale, is a server-side request forgery (SSRF) vulnerability in the "Web Services feature of newer Lexmark devices," according to the print giant's advisory (PDF). The printers have an embedded Web server that allows users to view and remotely configure printer settings via an Internet portal. In a typical SSRF attack, an attacker can take over such a server and force it to make a connection either to internal resources housing sensitive information; or to external systems serving malware (or harvesting things like tokens and credentials).

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