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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.3958
            2020.2 IPU - Intel CSME, SPS, TXE, and AMT Advisory
                             11 November 2020

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Intel Converged Security and Manageability Engine
                   Server Platform Services
                   Intel Trusted Execution Engine
                   Intel Dynamic Application Loader
                   Intel Active Management Technology
                   Intel Standard Manageability
                   Intel Dynamic Application Loader
Publisher:         Intel
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Increased Privileges     -- Remote/Unauthenticated
                   Denial of Service        -- Remote/Unauthenticated
                   Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-12356 CVE-2020-12355 CVE-2020-12354
                   CVE-2020-12304 CVE-2020-12303 CVE-2020-12297
                   CVE-2020-8761 CVE-2020-8760 CVE-2020-8757
                   CVE-2020-8756 CVE-2020-8755 CVE-2020-8754
                   CVE-2020-8753 CVE-2020-8752 CVE-2020-8751
                   CVE-2020-8750 CVE-2020-8749 CVE-2020-8747
                   CVE-2020-8746 CVE-2020-8745 CVE-2020-8744
                   CVE-2020-8705  

Original Bulletin: 
   https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00391.html

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Intel ID:             INTEL-SA-00391
Advisory Category:    Firmware, Software
Impact of             Escalation of Privilege, Denial of Service, Information
vulnerability :       Disclosure
Severity rating :     CRITICAL
Original release:     11/10/2020
Last revised:         11/10/2020

Summary:

Potential security vulnerabilities in Intel Converged Security and
Manageability Engine (CSME), Server Platform Services (SPS), Intel Trusted
Execution Engine (TXE), Intel Dynamic Application Loader (DAL), Intel Active
Management Technology (AMT), Intel Standard Manageability (ISM) and Intel
Dynamic Application Loader (Intel DAL) may allow escalation of privilege,
denial of service or information disclosure. Intel is releasing firmware and
software updates to mitigate these potential vulnerabilities.

Intel is not releasing updates to mitigate a potential vulnerability and has
issued a Product Discontinuation Notice for Intel DAL SDK.

Vulnerability Details:

CVEID: CVE-2020-8752

Description: Out-of-bounds write in IPv6 subsystem for Intel(R) AMT, Intel(R)
ISM versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 14.0.45 may allow an
unauthenticated user to potentially enable escalation of privileges via network
access.

CVSS Base Score: 9.4 Critical

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

CVEID: CVE-2020-8753

Description: Out-of-bounds read in DHCP subsystem for Intel(R) AMT, Intel(R)
ISM versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow
an unauthenticated user to potentially enable information disclosure via
network access.

CVSS Base Score: 8.2 High

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

CVEID: CVE-2020-12297

Description: Improper access control in Installer for Intel(R) CSME Driver for
Windows versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40,
13.30.10, 14.0.45 and 14.5.25, Intel TXE 3.1.80, 4.0.30 may allow an
authenticated user to potentially enable escalation of privileges via local
access.

CVSS Base Score: 8.2 High

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CVEID: CVE-2020-12304

Description: Improper access control in Installer for Intel(R) DAL SDK before
version 2.1 for Windows may allow an authenticated user to potentially enable
escalation of privileges via local access.

CVSS Base Score: 8.2 High

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CVEID: CVE-2020-8745

Description: Insufficient control flow management in subsystem for Intel(R)
CSME versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40, 13.30.10,
14.0.45 and 14.5.25 , Intel(R) TXE versions before 3.1.80 and 4.0.30 may allow
an unauthenticated user to potentially enable escalation of privilege via
physical access.

CVSS Base Score: 7.3 High

CVSS Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

CVEID: CVE-2020-8744

Description: Improper initialization in subsystem for Intel(R) CSME versions
before12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25, Intel TXE versions
before 4.0.30 Intel(R) SPS versions before E3_05.01.04.200 may allow a
privileged user to potentially enable escalation of privilege via local access.

CVSS Base Score: 7.2 High

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

CVEID: CVE-2020-8705

Description: Insecure default initialization of resource in Intel(R) Boot Guard
in Intel(R) CSME versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40,
13.30.10, 14.0.45 and 14.5.25, Intel(R) TXE versions before 3.1.80 and 4.0.30,
Intel(R) SPS versions before E5_04.01.04.400, E3_04.01.04.200,
SoC-X_04.00.04.200 and SoC-A_04.00.04.300 may allow an unauthenticated user to
potentially enable escalation of privileges via physical access.

CVSS Base Score: 7.1 High

CVSS Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVEID: CVE-2020-8750

Description: Use after free in Kernel Mode Driver for Intel(R) TXE versions
before 3.1.80 and 4.0.30 may allow an authenticated user to potentially enable
escalation of privilege via local access.

CVSS Base Score: 7.0 High

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVEID: CVE-2020-12303

Description: Use after free in DAL subsystem for Intel(R) CSME versions before
11.8.80, 11.12.80, 11.22.80, 12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25,
Intel TXE 3.1.80, 4.0.30 may allow an authenticated user to potentially enable
escalation of privileges via local access.

CVSS Base Score: 7.0 High

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE ID: CVE-2020-12354

Description: Incorrect default permissions in Windows(R) installer in Intel(R)
AMT SDK versions before 14.0.0.1 may allow an authenticated user to potentially
enable escalation of privilege via local access.

CVSS Base Score: 6.7 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CVEID: CVE-2020-8757

Description: Out-of-bounds read in subsystem for Intel(R) AMT versions before
11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow a privileged user to
potentially enable escalation of privilege via local access.

CVSS Base Score: 6.3 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

CVEID: CVE-2020-8756

Description: Improper input validation in subsystem for Intel(R) CSME versions
before 11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow a privileged
user to potentially enable escalation of privilege via local access.

CVSS Base Score: 6.3 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

CVEID: CVE-2020-8760

Description: Integer overflow in subsystem for Intel(R) AMT versions before
11.8.80, 11.12.80, 11.22.80, 12.0.70, 14.0.45 may allow a privileged user to
potentially enable escalation of privilege via local access.

CVSS Base Score: 6.0 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L

CVE ID: CVE-2020-12355

Description: Authentication bypass by capture-replay in RPMB protocol message
authentication subsystem in Intel(R) TXE versions before 4.0.30 may allow an
unauthenticated user to potentially enable escalation of privilege via physical
access.

CVSS Base Score: 5.3 Medium

CVSS Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

CVEID: CVE-2020-8751

Description: Insufficient control flow management in subsystem for Intel(R)
CSME versions before 11.8.80, Intel(R) TXE versions before 3.1.80 may allow an
unauthenticated user to potentially enable information disclosure via physical
access.

CVSS Base Score: 5.3 Medium

CVSS Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVEID: CVE-2020-8754

Description: Out-of-bounds read in subsystem for Intel(R) AMT, Intel(R) ISM
versions before 11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow an
unauthenticated user to potentially enable information disclosure via network
access.

CVSS Base Score: 5.3 Medium

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVEID: CVE-2020-8761

Description: Inadequate encryption strength in subsystem for Intel(R) CSME
versions before 13.0.40 and 13.30.10 may allow an unauthenticated user to
potentially enable information disclosure via physical access.

CVSS Base Score: 4.9 Medium

CVSS Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

CVEID: CVE-2020-8747

Description: Out-of-bounds read in subsystem for Intel(R) AMT versions before
11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow an unauthenticated
user to potentially enable information disclosure and/or denial of service via
network access.

CVSS Base Score: 4.8 Medium

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

CVEID: CVE-2020-8755

Description: Race condition in subsystem for Intel(R) CSME versions before
12.0.70 and 14.0.45, Intel(R) SPS versions before E5_04.01.04.400 and
E3_05.01.04.200 may allow an unauthenticated user to potentially enable
escalation of privilege via physical access.

CVSS Base Score: 4.6 Medium

CVSS Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVE ID: CVE-2020-12356

Description: Out-of-bounds read in subsystem in Intel(R) AMT versions before
11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow a privileged user to
potentially enable information disclosure via local access.

CVSS Base Score: 4.4 Medium

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVEID: CVE-2020-8746

Description: Integer overflow in subsystem for Intel(R) AMT versions before
11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow an unauthenticated
user to potentially enable denial of service via adjacent access.

CVSS Base Score: 4.3 Medium

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVEID: CVE-2020-8749

Description: Out-of-bounds read in subsystem for Intel(R) AMT versions before
11.8.80, 11.12.80, 11.22.80, 12.0.70 and 14.0.45 may allow an unauthenticated
user to potentially enable escalation of privilege via adjacent access.

CVSS Base Score: 4.2 Medium

CVSS Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Products:

  o Intel CSME and Intel AMT versions before 11.8.80, 11.12.80, 11.22.80,
    12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25.

  o Intel TXE versions before 3.1.80 and 4.0.30.

  o Intel Server Platform Services firmware versions before
    SPS_E5_04.01.04.400, SPS_E3_05.01.04.200, SPS_E3_04.01.04.200,
    SPS_SoC-X_04.00.04.200 and SPS_SoC-A_04.00.04.300.

Note: Firmware versions of Intel ME 3.x thru 10.x, Intel TXE 1.x thru 2.x, and
Intel Server Platform Services 1.x thru 2.X are no longer supported versions.
There is no new general release planned for these versions.

Recommendations:

Intel recommends that users of Intel CSME, Intel TXE, Intel AMT and Intel SPS
update to the latest version provided by the system manufacturer that addresses
these issues.

The Intel AMT SDK is available for download here .

Intel has issued a Product Discontinuation notice for the Intel DAL SDK and
recommends that users of the Intel DAL SDK uninstall it or discontinue use at
their earliest convenience.

Acknowledgements:

Intel would like to thank Trammell Hudson (CVE-2020-8705), Marius Gabriel Mihai
(CVE-2020-12354, CVE-2020-12304), Oussama Sahnoun (CVE-2020-12297), Rotem Sela
and Brian Mastenbrook (CVE-2020-12355) for reporting these issues.

The additional issues were found internally by Intel employees. Intel would
like to thank Arie Haenel, Aviya Erenfeld, Binyamin Belaciano, Dmitry
Piotrovsky, Julien Lenoir, Niv Israely, Ofek Mostovoy and Yakov Cohen.

Intel, and nearly the entire technology industry, follows a disclosure practice
called Coordinated Disclosure, under which a cybersecurity vulnerability is
generally publicly disclosed only after mitigations are available.

Revision History

Revision    Date      Description
1.0      11/10/2020 Initial Release

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