CVE-2020-3284
Summary
| CVE | CVE-2020-3284 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-11-06 19:15:00 UTC |
| Updated | 2021-01-05 18:56:00 UTC |
| Description | A vulnerability in the enhanced Preboot eXecution Environment (PXE) boot loader for Cisco IOS XR 64-bit Software could allow an unauthenticated, remote attacker to execute unsigned code during the PXE boot process on an affected device. The PXE boot loader is part of the BIOS and runs over the management interface of hardware platforms that are running Cisco IOS XR Software only. The vulnerability exists because internal commands that are issued when the PXE network boot process is loading a software image are not properly verified. An attacker could exploit this vulnerability by compromising the PXE boot server and replacing a valid software image with a malicious one. Alternatively, the attacker could impersonate the PXE boot server and send a PXE boot reply with a malicious file. A successful exploit could allow the attacker to execute unsigned code on the affected device. Note: To fix this vulnerability, both the Cisco IOS XR Software and the BIOS must be upgraded. The BIOS code is included in Cisco IOS XR Software but might require additional installation steps. For further information, see the Fixed Software section of this advisory. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Cisco | A99-rp2-se | - | All | All | All |
| Hardware | Cisco | A99-rp2-se | - | All | All | All |
| Operating System | Cisco | A99-rp2-se Firmware | All | All | All | All |
| Operating System | Cisco | A99-rp2-se Firmware | All | All | All | All |
| Hardware | Cisco | A99-rp2-tr | - | All | All | All |
| Hardware | Cisco | A99-rp2-tr | - | All | All | All |
| Operating System | Cisco | A99-rp2-tr Firmware | All | All | All | All |
| Operating System | Cisco | A99-rp2-tr Firmware | All | All | All | All |
| Hardware | Cisco | A99-rp3-se | - | All | All | All |
| Hardware | Cisco | A99-rp3-se | - | All | All | All |
| Operating System | Cisco | A99-rp3-se Firmware | All | All | All | All |
| Operating System | Cisco | A99-rp3-se Firmware | All | All | All | All |
| Hardware | Cisco | A99-rp3-tr | - | All | All | All |
| Hardware | Cisco | A99-rp3-tr | - | All | All | All |
| Operating System | Cisco | A99-rp3-tr Firmware | All | All | All | All |
| Operating System | Cisco | A99-rp3-tr Firmware | All | All | All | All |
| Hardware | Cisco | A99-rsp-se | - | All | All | All |
| Hardware | Cisco | A99-rsp-se | - | All | All | All |
| Operating System | Cisco | A99-rsp-se Firmware | All | All | All | All |
| Operating System | Cisco | A99-rsp-se Firmware | All | All | All | All |
| Hardware | Cisco | A99-rsp-tr | - | All | All | All |
| Hardware | Cisco | A99-rsp-tr | - | All | All | All |
| Operating System | Cisco | A99-rsp-tr Firmware | All | All | All | All |
| Operating System | Cisco | A99-rsp-tr Firmware | All | All | All | All |
| Hardware | Cisco | A9k-rsp5-se | - | All | All | All |
| Hardware | Cisco | A9k-rsp5-se | - | All | All | All |
| Operating System | Cisco | A9k-rsp5-se Firmware | All | All | All | All |
| Operating System | Cisco | A9k-rsp5-se Firmware | All | All | All | All |
| Hardware | Cisco | A9k-rsp5-tr | - | All | All | All |
| Hardware | Cisco | A9k-rsp5-tr | - | All | All | All |
| Operating System | Cisco | A9k-rsp5-tr Firmware | All | All | All | All |
| Operating System | Cisco | A9k-rsp5-tr Firmware | All | All | All | All |
| Hardware | Cisco | A9k-rsp880-lt-se | - | All | All | All |
| Hardware | Cisco | A9k-rsp880-lt-se | - | All | All | All |
| Operating System | Cisco | A9k-rsp880-lt-se Firmware | All | All | All | All |
| Operating System | Cisco | A9k-rsp880-lt-se Firmware | All | All | All | All |
| Hardware | Cisco | A9k-rsp880-lt-tr | - | All | All | All |
| Hardware | Cisco | A9k-rsp880-lt-tr | - | All | All | All |
| Operating System | Cisco | A9k-rsp880-lt-tr Firmware | All | All | All | All |
| Operating System | Cisco | A9k-rsp880-lt-tr Firmware | All | All | All | All |
| Hardware | Cisco | A9k-rsp880-se | - | All | All | All |
| Hardware | Cisco | A9k-rsp880-se | - | All | All | All |
| Operating System | Cisco | A9k-rsp880-se Firmware | All | All | All | All |
| Operating System | Cisco | A9k-rsp880-se Firmware | All | All | All | All |
| Hardware | Cisco | A9k-rsp880-tr | - | All | All | All |
| Hardware | Cisco | A9k-rsp880-tr | - | All | All | All |
| Operating System | Cisco | A9k-rsp880-tr Firmware | All | All | All | All |
| Operating System | Cisco | A9k-rsp880-tr Firmware | All | All | All | All |
| Hardware | Cisco | Asr-9901-rp | - | All | All | All |
| Hardware | Cisco | Asr-9901-rp | - | All | All | All |
| Operating System | Cisco | Asr-9901-rp Firmware | All | All | All | All |
| Operating System | Cisco | Asr-9901-rp Firmware | All | All | All | All |
| Operating System | Cisco | Ios Xr | All | All | All | All |
| Operating System | Cisco | Ios Xr | All | All | All | All |
| Hardware | Cisco | N540-12z20g-sys-a/d | - | All | All | All |
| Hardware | Cisco | N540-12z20g-sys-a/d | - | All | All | All |
| Operating System | Cisco | N540-12z20g-sys-a/d Firmware | All | All | All | All |
| Operating System | Cisco | N540-12z20g-sys-a/d Firmware | All | All | All | All |
| Hardware | Cisco | N540-24z8q2c-m | - | All | All | All |
| Hardware | Cisco | N540-24z8q2c-m | - | All | All | All |
| Operating System | Cisco | N540-24z8q2c-m Firmware | All | All | All | All |
| Operating System | Cisco | N540-24z8q2c-m Firmware | All | All | All | All |
| Hardware | Cisco | N540-28z4c-sys-a/d | - | All | All | All |
| Hardware | Cisco | N540-28z4c-sys-a/d | - | All | All | All |
| Operating System | Cisco | N540-28z4c-sys-a/d Firmware | All | All | All | All |
| Operating System | Cisco | N540-28z4c-sys-a/d Firmware | All | All | All | All |
| Hardware | Cisco | N540-acc-sys | - | All | All | All |
| Hardware | Cisco | N540-acc-sys | - | All | All | All |
| Operating System | Cisco | N540-acc-sys Firmware | All | All | All | All |
| Operating System | Cisco | N540-acc-sys Firmware | All | All | All | All |
| Hardware | Cisco | N540x-12z16g-sys-a/d | - | All | All | All |
| Hardware | Cisco | N540x-12z16g-sys-a/d | - | All | All | All |
| Operating System | Cisco | N540x-12z16g-sys-a/d Firmware | All | All | All | All |
| Operating System | Cisco | N540x-12z16g-sys-a/d Firmware | All | All | All | All |
| Hardware | Cisco | N540x-16z4g8q2c-a/d | - | All | All | All |
| Hardware | Cisco | N540x-16z4g8q2c-a/d | - | All | All | All |
| Operating System | Cisco | N540x-16z4g8q2c-a/d Firmware | All | All | All | All |
| Operating System | Cisco | N540x-16z4g8q2c-a/d Firmware | All | All | All | All |
| Hardware | Cisco | N560-4-sys | - | All | All | All |
| Hardware | Cisco | N560-4-sys | - | All | All | All |
| Operating System | Cisco | N560-4-sys Firmware | All | All | All | All |
| Operating System | Cisco | N560-4-sys Firmware | All | All | All | All |
| Hardware | Cisco | N560-7-sys | - | All | All | All |
| Hardware | Cisco | N560-7-sys | - | All | All | All |
| Operating System | Cisco | N560-7-sys Firmware | All | All | All | All |
| Operating System | Cisco | N560-7-sys Firmware | All | All | All | All |
| Hardware | Cisco | Nc55-rp | - | All | All | All |
| Hardware | Cisco | Nc55-rp | - | All | All | All |
| Hardware | Cisco | Nc55-rp-e | - | All | All | All |
| Hardware | Cisco | Nc55-rp-e | - | All | All | All |
| Operating System | Cisco | Nc55-rp-e Firmware | All | All | All | All |
| Operating System | Cisco | Nc55-rp-e Firmware | All | All | All | All |
| Operating System | Cisco | Nc55-rp Firmware | All | All | All | All |
| Operating System | Cisco | Nc55-rp Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-5501 | - | All | All | All |
| Hardware | Cisco | Ncs-5501 | - | All | All | All |
| Hardware | Cisco | Ncs-5501-se | - | All | All | All |
| Hardware | Cisco | Ncs-5501-se | - | All | All | All |
| Operating System | Cisco | Ncs-5501-se Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-5501-se Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-5501 Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-5501 Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-5502 | - | All | All | All |
| Hardware | Cisco | Ncs-5502 | - | All | All | All |
| Hardware | Cisco | Ncs-5502-se | - | All | All | All |
| Hardware | Cisco | Ncs-5502-se | - | All | All | All |
| Operating System | Cisco | Ncs-5502-se Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-5502-se Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-5502 Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-5502 Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-55a1-24h | - | All | All | All |
| Hardware | Cisco | Ncs-55a1-24h | - | All | All | All |
| Operating System | Cisco | Ncs-55a1-24h Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a1-24h Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-55a1-24q6h-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a1-24q6h-s | - | All | All | All |
| Operating System | Cisco | Ncs-55a1-24q6h-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a1-24q6h-s Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-55a1-36h-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a1-36h-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a1-36h-se-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a1-36h-se-s | - | All | All | All |
| Operating System | Cisco | Ncs-55a1-36h-se-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a1-36h-se-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a1-36h-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a1-36h-s Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-hd-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-hd-s | - | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-hd-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-hd-s Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-hx-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-hx-s | - | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-hx-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-hx-s Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-se-h-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-se-h-s | - | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-se-h-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-se-h-s Firmware | All | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-se-s | - | All | All | All |
| Hardware | Cisco | Ncs-55a2-mod-se-s | - | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-se-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-se-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-s Firmware | All | All | All | All |
| Operating System | Cisco | Ncs-55a2-mod-s Firmware | All | All | All | All |
| Hardware | Cisco | Ncs1001 | - | All | All | All |
| Hardware | Cisco | Ncs1001 | - | All | All | All |
| Operating System | Cisco | Ncs1001 Firmware | All | All | All | All |
| Operating System | Cisco | Ncs1001 Firmware | All | All | All | All |
| Hardware | Cisco | Ncs1002 | - | All | All | All |
| Hardware | Cisco | Ncs1002 | - | All | All | All |
| Operating System | Cisco | Ncs1002 Firmware | All | All | All | All |
| Operating System | Cisco | Ncs1002 Firmware | All | All | All | All |
| Hardware | Cisco | Ncs1004 | - | All | All | All |
| Hardware | Cisco | Ncs1004 | - | All | All | All |
| Operating System | Cisco | Ncs1004 Firmware | All | All | All | All |
| Operating System | Cisco | Ncs1004 Firmware | All | All | All | All |
| Hardware | Cisco | Ncs5001 | - | All | All | All |
| Hardware | Cisco | Ncs5001 | - | All | All | All |
| Operating System | Cisco | Ncs5001 Firmware | All | All | All | All |
| Operating System | Cisco | Ncs5001 Firmware | All | All | All | All |
| Hardware | Cisco | Ncs5002 | - | All | All | All |
| Hardware | Cisco | Ncs5002 | - | All | All | All |
| Operating System | Cisco | Ncs5002 Firmware | All | All | All | All |
| Operating System | Cisco | Ncs5002 Firmware | All | All | All | All |
| Hardware | Cisco | Ncs5011 | - | All | All | All |
| Hardware | Cisco | Ncs5011 | - | All | All | All |
| Operating System | Cisco | Ncs5011 Firmware | All | All | All | All |
| Operating System | Cisco | Ncs5011 Firmware | All | All | All | All |
| Hardware | Cisco | Ncs55-a1-48q6h | - | All | All | All |
| Hardware | Cisco | Ncs55-a1-48q6h | - | All | All | All |
| Operating System | Cisco | Ncs55-a1-48q6h Firmware | All | All | All | All |
| Operating System | Cisco | Ncs55-a1-48q6h Firmware | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Cisco IOS XR Software Enhanced Preboot eXecution Environment Unsigned Code Execution Vulnerability | CISCO | tools.cisco.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.