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CVE-2016-1896: Lexmark Printer Firmware: Authentication bypass
CVE-2016-1896 is rated critical with a CVSS v3.0 base score of 9.8 and NVD lists Lexmark Printer Firmware as the affected product. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.
Vulnerability description
Race condition in the initialization process on Lexmark printers with firmware ATL before ATL.02.049, CB before CB.02.049, PP before PP.02.049, and YK before YK.02.049 allows remote attackers to bypass authentication by leveraging incorrect detection of the security-jumper status.
Severity breakdown
CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
- Availability impact: High. Total loss of availability; the component can be shut down.
Affected products
- Lexmark Printer Firmware: up to and including cb.02.048; up to and including atl.02.048; up to and including yk.02.048; up to and including pp.02.048