Vulnerability Name:

CVE-2020-3458 (CCN-190309)

Assigned:2019-12-12
Published:2020-10-21
Updated:2020-10-28
Summary:Multiple vulnerabilities in the secure boot process of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software for the Firepower 1000 Series and Firepower 2100 Series Appliances could allow an authenticated, local attacker to bypass the secure boot mechanism. The vulnerabilities are due to insufficient protections of the secure boot process. An attacker could exploit these vulnerabilities by injecting code into specific files that are then referenced during the device boot process. A successful exploit could allow the attacker to break the chain of trust and inject code into the boot process of the device, which would be executed at each boot and maintain persistence across reboots.
CVSS v3 Severity:6.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
6.7 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
5.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-Other
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-3458

Source: XF
Type: UNKNOWN
cisco-cve20203458-sec-bypass(190309)

Source: CCN
Type: Cisco Security Advisory cisco-sa-fxos-sbbyp-KqP6NgrE
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 1000/2100 Series Appliances Secure Boot Bypass Vulnerabilities

Source: CISCO
Type: Vendor Advisory
20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 1000/2100 Series Appliances Secure Boot Bypass Vulnerabilities

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.8.0 and < 9.8.4.26)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.9.0 and < 9.9.2.80)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.10.0 and < 9.10.1.43)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.12.0 and < 9.12.4.3)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.13.0 and < 9.13.1.13)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.14.0 and < 9.14.1.15)
  • AND
  • cpe:/h:cisco:firepower_1010:*:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_1010:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_1120:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_1140:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_1150:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2110:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2120:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2130:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2140:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version <= 6.2.2)
  • OR cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.3.0 and < 6.3.0.6)
  • OR cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.4.0 and < 6.4.0.10)
  • OR cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.5.0 and < 6.5.0.5)
  • OR cpe:/a:cisco:firepower_threat_defense:6.6.0:*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:firepower_1010:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_1120:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_1140:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_1150:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2110:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2120:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2130:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2140:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:firepower_threat_defense_software:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco firepower 1010 *
    cisco firepower 1010 -
    cisco firepower 1120 -
    cisco firepower 1140 -
    cisco firepower 1150 -
    cisco firepower 2110 -
    cisco firepower 2120 -
    cisco firepower 2130 -
    cisco firepower 2140 -
    cisco firepower threat defense *
    cisco firepower threat defense *
    cisco firepower threat defense *
    cisco firepower threat defense *
    cisco firepower threat defense 6.6.0
    cisco firepower 1010 -
    cisco firepower 1120 -
    cisco firepower 1140 -
    cisco firepower 1150 -
    cisco firepower 2110 -
    cisco firepower 2120 -
    cisco firepower 2130 -
    cisco firepower 2140 -
    cisco adaptive security appliance software *
    cisco firepower threat defense software *