EPSON Network Utility contains a local privilege escalation vulnerability, which allows a local attacker to execute arbitrary code with SYSTEM privileges.
CWE-276: Incorrect Default Permissions - CVE-2015-6034
EPSON Network Utility v4.10 is an application that checks the printer status and displays the printing progress over the network. During installation, the EPSON Network Utility creates
EpsonBidirectionalService which runs as SYSTEM. The corresponding executable,
eEBSVC.exe, has insecure permissions, allowing full access to the "Everyone" group in Windows. By replacing
eEBSVC.exe with a malicious file of the same name, an attacker can execute arbitrary code with SYSTEM privileges.
A local, authenticated attacker can execute arbitrary code with SYSTEM privileges.
Apply an update
EPSON has released an update addressing CVE-2015-6034. Affected users are encouraged to update as soon as possible.
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Notified: August 14, 2015 Updated: November 19, 2015
Statement Date: September 16, 2015
No statement is currently available from the vendor regarding this vulnerability.
We are not aware of further vendor information regarding this vulnerability.
Group | Score | Vector
Base | 6.6 | AV:L/AC:M/Au:S/C:C/I:C/A:C
Temporal | 5.5 | E:F/RL:OF/RC:C
Environmental | 4.1 | CDP:N/TD:M/CR:ND/IR:ND/AR:ND
Thanks to Will Hunt of 7Safe Ltd for reporting this vulnerability.
This document was written by Brian Gardiner.
CVE IDs: | CVE-2015-6034
Date Public: | 2015-10-27
Date First Published: | 2015-10-27
Date Last Updated: | 2015-11-19 14:40 UTC
Document Revision: | 41