The Sophos UTM VPN endpoint interacts with client software provided by NPC Engineering (www.ncp-e.com). The affected client software, "Sophos IPSec Client" 11.04 is a rebranded version of NCP "Secure Entry Client" 10.11 r32792. A vulnerability in the software update feature of the VPN client allows a man-in-the-middle (MITM) or man-on-the-side (MOTS) attacker to execute arbitrary, malicious software on a target user's computer. This is related to SIC_V11.04-64.exe (Sophos), NCP_EntryCl_Windows_x86_1004_31799.exe (NCP), and ncpmon.exe (both Sophos and NCP). The vulnerability exists because: (1) the VPN client requests update metadata over an insecure HTTP connection; and (2) the client software does not check if the software update is signed before running it.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-04-09T17:13:22

Updated: 2024-08-05T20:43:59.583Z

Reserved: 2017-11-27T00:00:00

Link: CVE-2017-17023

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-04-09T18:29:00.280

Modified: 2024-11-21T03:17:21.933

Link: CVE-2017-17023

cve-icon Redhat

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