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Lexmark Printer Information Disclosure Vulnerability (TE923)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Some Lexmark devices have the 'finger' service enabled by default. This service allows unauthenticated access to internal diagnostic information of the device. Lexmark recommends that the finger service be disabled by blocking access to TCP port 79 via the 'TCP/IP Port Access' configuration menu.
Insight
Insight
The finger service (TCP port 79) is a legacy method for determining the state of a device. The finger service also allows unauthenticated access to diagnostic information from the device. Newer Lexmark products disable 'Finger' by default, but on older devices the default is to enable the service. Lexmark recommends that the finger service be disabled by blocking access to TCP port 79 via the 'TCP/IP Port Access' configuration menu.
Detection Method
Detection Method
Checks if a vulnerable firmware version is present on the target host.
Solution
Solution
See the referenced vendor advisory for a solution.