Malicious Actors Exploit CVE-2023-27350 in PaperCut MF and NG
In May 2023, CISA alerted cybersecurity professionals with a joint cybersecurity advisory (CSA) with the FBI that informs us of CVE-2023-27350 exploits regarding PaperCut MF and NG-related programs.
Such exploits pose a risk in situations when cyber intruders already possess network access; if successful, these vulnerabilities enable hackers to execute arbitrary code remotely within affected systems – allowing them full control over these compromised assets indefinitely.
This specific critical glitch is traced back to user input processing mishandling by PaperCut MF/NG applications via its API weakness; bad actors can manipulate these weaknesses through specially-crafted input formats while compromising these applications’ APIs entirely.
Cybersecurity experts report having witnessed real-life scenarios where attackers exploited this vulnerability; for example, Cobalt Strike Beacons were installed on vulnerable networks that offer post-exploitation benefits – such as omnipresent audience presence and subsequent attack capabilities. Fortunately, PaperCut responded to this threat quickly by executing its patches that counter the identified vulnerability.
It is highly advisable for all users to apply such releases of patches immediately.
We strongly recommend that warning notices or advisories from CISA require prompt action from all stakeholders concerned – especially those faced with concerns regarding their cybersecurity. For instance, we advise users to apply all available security measures promptly; it means disabling the vulnerable software application API if necessary and applying PaperCut emergency patches as soon as they become available.
In addition to ensuring full implementation of best practices in cyber hygiene, including frequent changing of passwords and avoiding oversharing private information online. Your utmost priority should be to maintain vigilance regarding any email communication that requests confidential data.
Additionally, it is imperative that you refrain from clicking on links embedded within email messages originating from unfamiliar sources. In doing so you can safeguard your systems against potential susceptibility to vulnerabilities.