// For flags

CVE-2023-20236

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device.
This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device.

Una vulnerabilidad en la función de arranque iPXE del software Cisco IOS XR podría permitir que un atacante local autenticado instale una imagen de software no verificada en un dispositivo afectado. Esta vulnerabilidad se debe a una verificación de imagen insuficiente. Un atacante podría aprovechar esta vulnerabilidad manipulando los parámetros de arranque para la verificación de imágenes durante el proceso de arranque iPXE en un dispositivo afectado. Una explotación exitosa podría permitir al atacante iniciar una imagen de software no verificada en el dispositivo afectado.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2022-10-27 CVE Reserved
  • 2023-09-13 CVE Published
  • 2023-09-14 EPSS Updated
  • 2024-10-23 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-345: Insufficient Verification of Data Authenticity
  • CWE-347: Improper Verification of Cryptographic Signature
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8201
Search vendor "Cisco" for product "8201"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8202
Search vendor "Cisco" for product "8202"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8208
Search vendor "Cisco" for product "8208"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8212
Search vendor "Cisco" for product "8212"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8218
Search vendor "Cisco" for product "8218"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8804
Search vendor "Cisco" for product "8804"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8808
Search vendor "Cisco" for product "8808"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8812
Search vendor "Cisco" for product "8812"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8818
Search vendor "Cisco" for product "8818"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
8831
Search vendor "Cisco" for product "8831"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9000
Search vendor "Cisco" for product "Asr 9000"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9000v
Search vendor "Cisco" for product "Asr 9000v"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9001
Search vendor "Cisco" for product "Asr 9001"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9006
Search vendor "Cisco" for product "Asr 9006"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9010
Search vendor "Cisco" for product "Asr 9010"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9901
Search vendor "Cisco" for product "Asr 9901"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9902
Search vendor "Cisco" for product "Asr 9902"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9903
Search vendor "Cisco" for product "Asr 9903"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9904
Search vendor "Cisco" for product "Asr 9904"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9906
Search vendor "Cisco" for product "Asr 9906"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9910
Search vendor "Cisco" for product "Asr 9910"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9912
Search vendor "Cisco" for product "Asr 9912"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9920
Search vendor "Cisco" for product "Asr 9920"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Asr 9922
Search vendor "Cisco" for product "Asr 9922"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 1001
Search vendor "Cisco" for product "Ncs 1001"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 1002
Search vendor "Cisco" for product "Ncs 1002"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 1004
Search vendor "Cisco" for product "Ncs 1004"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 4009
Search vendor "Cisco" for product "Ncs 4009"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 4016
Search vendor "Cisco" for product "Ncs 4016"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 4201
Search vendor "Cisco" for product "Ncs 4201"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 4202
Search vendor "Cisco" for product "Ncs 4202"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 4206
Search vendor "Cisco" for product "Ncs 4206"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 4216
Search vendor "Cisco" for product "Ncs 4216"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5001
Search vendor "Cisco" for product "Ncs 5001"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5002
Search vendor "Cisco" for product "Ncs 5002"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5011
Search vendor "Cisco" for product "Ncs 5011"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 540
Search vendor "Cisco" for product "Ncs 540"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5500
Search vendor "Cisco" for product "Ncs 5500"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5501
Search vendor "Cisco" for product "Ncs 5501"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5501
Search vendor "Cisco" for product "Ncs 5501"
se
Search vendor "Cisco" for product "Ncs 5501" and version "se"
-
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5502
Search vendor "Cisco" for product "Ncs 5502"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5502
Search vendor "Cisco" for product "Ncs 5502"
se
Search vendor "Cisco" for product "Ncs 5502" and version "se"
-
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5504
Search vendor "Cisco" for product "Ncs 5504"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5508
Search vendor "Cisco" for product "Ncs 5508"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 5516
Search vendor "Cisco" for product "Ncs 5516"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 560
Search vendor "Cisco" for product "Ncs 560"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 560-4
Search vendor "Cisco" for product "Ncs 560-4"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 560-7
Search vendor "Cisco" for product "Ncs 560-7"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 57b1-5dse-sys
Search vendor "Cisco" for product "Ncs 57b1-5dse-sys"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 57b1-6d24-sys
Search vendor "Cisco" for product "Ncs 57b1-6d24-sys"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 57c1-48q6-sys
Search vendor "Cisco" for product "Ncs 57c1-48q6-sys"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 57c3-mod-sys
Search vendor "Cisco" for product "Ncs 57c3-mod-sys"
--
Safe
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 7.10.1
Search vendor "Cisco" for product "Ios Xr" and version " < 7.10.1"
-
Affected
in Cisco
Search vendor "Cisco"
Ncs 57c3-mods-sys
Search vendor "Cisco" for product "Ncs 57c3-mods-sys"
--
Safe