| Vulnerability Name: | CVE-2021-1441 (CCN-198731) |
| Assigned: | 2020-11-13 |
| Published: | 2021-03-24 |
| Updated: | 2022-09-12 |
| Summary: | A vulnerability in the hardware initialization routines of Cisco IOS XE Software for Cisco 1100 Series Industrial Integrated Services Routers and Cisco ESR6300 Embedded Series Routers could allow an authenticated, local attacker to execute unsigned code at system boot time. This vulnerability is due to incorrect validations of parameters passed to a diagnostic script that is executed when the device boots up. An attacker could exploit this vulnerability by tampering with an executable file stored on a device. A successful exploit could allow the attacker to execute unsigned code at boot time and bypass the software image verification check part of the secure boot process of an affected device. To exploit this vulnerability, the attacker would need administrative level credentials (level 15) on the device.
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| 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 |
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| CVSS v2 Severity: | 7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)| Exploitability Metrics: | Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None | | Impact Metrics: | Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete |
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-78
CWE-78
|
| Vulnerability Consequences: | Gain Access |
| References: | Source: MITRE
Type: CNA
CVE-2021-1441
Source: XF
Type: UNKNOWN
cisco-cve20211441-code-exec(198731)
Source: CCN
Type: Cisco Security Advisory cisco-sa-ios-xe-iot-codexec-k46EFF6q
Cisco IOS XE Software Hardware Initialization Routines Arbitrary Code Execution Vulnerability
Source: CISCO
Type: Vendor Advisory
20210324 Cisco IOS XE Software Hardware Initialization Routines Arbitrary Code Execution Vulnerability
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| Vulnerable Configuration: | Configuration 1:
cpe:/o:cisco:ios_xe:16.9.1:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.9.1c:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:17.1.1:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.1za:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:16.12.4:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:17.1.1s:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:17.1.1t:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:17.1.2:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:*OR cpe:/o:cisco:ios_xe:17.2.3:*:*:*:*:*:*:*AND cpe:/h:cisco:ir1101:-:*:*:*:*:*:*:*OR cpe:/h:cisco:esr6300:-:*:*:*:*:*:*:*
Configuration CCN 1:
cpe:/o:cisco:ios_xe_software:*:*:*:*:*:*:*:*
 Denotes that component is vulnerable |
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