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.
References
Configurations
Configuration 1 (hide)
|
History
21 Nov 2024, 03:17
Type | Values Removed | Values Added |
---|---|---|
References | () https://www.ncp-e.com/en/resources/download-vpn-client/#c8680 - Vendor Advisory | |
References | () https://www.ncp-e.com/fileadmin/pdf/service_support/release_notes/NCP_Secure_Clients/NCP_Secure_Entry_Client/NCP_RN_Win_Secure_Entry_Client_11_14_r42039_en.pdf - Vendor Advisory |
Information
Published : 2019-04-09 18:29
Updated : 2024-11-21 03:17
NVD link : CVE-2017-17023
Mitre link : CVE-2017-17023
CVE.ORG link : CVE-2017-17023
JSON object : View
Products Affected
ncp-e
- ncp_secure_entry_client
sophos
- ipsec_client
CWE
CWE-345
Insufficient Verification of Data Authenticity