Vulnerability Name:

CVE-2017-3771 (CCN-134112)

Assigned:2016-12-16
Published:2017-10-26
Updated:2019-10-03
Summary:System boot process is not adequately secured In Lenovo E95 and ThinkCentre M710s/M710t because systems were shipped from factory without completing BIOS/UEFI initialization process.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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): None
Integrity (I): High
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.3 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2017-3771

Source: XF
Type: UNKNOWN
lenovo-cve20173771-sec-bypass(134112)

Source: CCN
Type: Lenovo Security Advisory: LEN-17417
Secure BIOS/UEFI Set-up Incomplete in Lenovo E95 and ThinkCentre M710s/M710t

Source: CONFIRM
Type: Issue Tracking, Vendor Advisory
https://support.lenovo.com/us/en/product_security/LEN-17417

Vulnerable Configuration:Configuration 1:
  • cpe:/o:lenovo:thinkcentre_m710s_firmware:*:*:*:*:*:*:*:* (Version < m16kt40a)
  • AND
  • cpe:/h:lenovo:thinkcentre_m710s:-:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:lenovo:thinkcentre_m710t_firmware:*:*:*:*:*:*:*:* (Version < m16kt40a)
  • AND
  • cpe:/h:lenovo:thinkcentre_m710t:-:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:lenovo:aio_e95_firmware:*:*:*:*:*:*:*:* (Version < m16kt40a)
  • AND
  • cpe:/h:lenovo:aio_e95:-:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/h:lenovo:aio_e95:-:*:*:*:*:*:*:*
  • OR cpe:/h:lenovo:thinkcentre_m710s:-:*:*:*:*:*:*:*
  • OR cpe:/h:lenovo:thinkcentre_m710t:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    lenovo thinkcentre m710s firmware *
    lenovo thinkcentre m710s -
    lenovo thinkcentre m710t firmware *
    lenovo thinkcentre m710t -
    lenovo aio e95 firmware *
    lenovo aio e95 -
    lenovo aio e95 -
    lenovo thinkcentre m710s -
    lenovo thinkcentre m710t -