CVE-2020-10095 in Lexmark
Summary
by MITRE • 02/19/2025
Various Lexmark devices have CSRF that allows an attacker to modify the configuration of the device.
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Analysis
by VulDB Data Team • 02/19/2025
The vulnerability identified as CVE-2020-10095 represents a cross-site request forgery flaw affecting multiple Lexmark printing devices. This security weakness resides in the web-based management interfaces of these devices, where proper authentication and authorization mechanisms fail to validate the origin of requests. The flaw allows an attacker to manipulate device configurations through malicious web pages or crafted requests that exploit the trust relationship between the device and its users. Such vulnerabilities are particularly dangerous in enterprise environments where printing devices often serve as entry points for broader network infiltration attempts.
The technical implementation of this CSRF vulnerability stems from the absence of anti-CSRF tokens or similar protective mechanisms within the device's web interface. When legitimate users interact with the device's management portal, the system does not adequately verify that requests originate from authorized sources. This allows attackers to construct malicious web pages that, when visited by authenticated users, automatically submit configuration changes to the vulnerable device. The flaw is categorized under CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities in software systems.
The operational impact of this vulnerability extends beyond simple configuration changes, as compromised printing devices can serve as persistent footholds for attackers within corporate networks. Lexmark devices often have elevated privileges and network access, making them attractive targets for adversaries seeking to establish long-term presence in environments. Attackers can leverage this vulnerability to modify network settings, change administrative credentials, disable security features, or redirect print jobs to malicious destinations. The attack surface is particularly concerning given that many organizations lack proper network segmentation between printing infrastructure and critical systems, allowing lateral movement once a device is compromised.
Mitigation strategies for CVE-2020-10095 should focus on implementing proper authentication controls and input validation mechanisms. Organizations must ensure that all web-based administrative interfaces require anti-CSRF tokens for every state-changing operation, preventing unauthorized modifications from external sources. Network segmentation and access control measures should be implemented to limit direct administrative access to printing devices. Regular firmware updates and security assessments are essential to address known vulnerabilities. The ATT&CK framework categorizes this type of vulnerability under T1071.004 for application layer protocol and T1566 for credential access, highlighting the potential for privilege escalation and persistent access through compromised device management interfaces. Device administrators should also implement monitoring solutions to detect unauthorized configuration changes and establish baseline configurations for regular comparison against current settings.