Vulnerability Name:

CVE-2017-3742 (CCN-128489)

Assigned:2016-12-16
Published:2017-07-13
Updated:2017-07-27
Summary:In Lenovo Connect2 versions earlier than 4.2.5.4885 for Windows and 4.2.5.3071 for Android, when an ad-hoc connection is made between two systems for the purpose of sharing files, the password for this ad-hoc connection will be stored in a user-readable location. An attacker with read access to the user's contents could connect to the Connect2 hotspot and see the contents of files while they are being transferred between the two systems.
CVSS v3 Severity:4.8 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.3 Low (CVSS v2 Vector: AV:A/AC:M/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2017-3742

Source: XF
Type: UNKNOWN
lenovo-cve20173742-info-disc(128489)

Source: CCN
Type: Lenovo Security Advisory: LEN-14398
Disclosure of ad-hoc wifi network key stored in user-readable location

Source: CONFIRM
Type: Vendor Advisory
https://support.lenovo.com/us/en/product_security/LEN-14398

Vulnerable Configuration:Configuration 1:
  • cpe:/a:lenovo:connect2:*:*:*:*:*:*:*:* (Version <= 4.2.5)
  • AND
  • cpe:/o:microsoft:windows:*:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:lenovo:connect2:*:*:*:*:*:*:*:* (Version <= 4.2.5)
  • AND
  • cpe:/o:google:android:*:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:lenovo:connect2:4.2.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    lenovo connect2 *
    microsoft windows *
    lenovo connect2 *
    google android *
    lenovo connect2 4.2.5