CVE-2023-20064
"Cisco GRUB Console File Disclosure"
Description
A vulnerability in the GRand Unified Bootloader (GRUB) for Cisco IOS XR Software could allow an unauthenticated attacker with physical access to the device to view sensitive files on the console using the GRUB bootloader command line. This vulnerability is due to the inclusion of unnecessary commands within the GRUB environment that allow sensitive files to be viewed. An attacker could exploit this vulnerability by being connected to the console port of the Cisco IOS XR device when the device is power-cycled. A successful exploit could allow the attacker to view sensitive files that could be used to conduct additional attacks against the device.
INFO
Published Date :
March 9, 2023, 10:15 p.m.
Last Modified :
Nov. 7, 2023, 4:05 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-20064.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-load-infodisc-9rdOr5Fq | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-20064 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-20064 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 Cisco Systems, Inc. AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 Cisco Systems, Inc. AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N -
Initial Analysis by [email protected]
Mar. 16, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-load-infodisc-9rdOr5Fq No Types Assigned https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-load-infodisc-9rdOr5Fq Vendor Advisory Added CWE NIST CWE-862 Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* versions up to (excluding) 7.9.1 OR cpe:2.3:h:cisco:asr_9000v-v2:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9902:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:x64:* cpe:2.3:h:cisco:ios_xrv_9000:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_1001:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_1002:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_1004:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* versions up to (excluding) 7.6.1 OR cpe:2.3:h:cisco:nc57-18dd-se:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nc57-24dd:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nc57-36h-se:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nc57-36h6d-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_540_fronthaul:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5501:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5501-se:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5502:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5502-se:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5508:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5516:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_560-4:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_560-7:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_57b1-5dse-sys:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_57b1-6d24-sys:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_57c1-48q6-sys:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_57c3-mod-sys:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_57c3-mods-sys:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* versions up to (excluding) 7.7.1 OR cpe:2.3:h:cisco:ncs_5001:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5002:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ncs_5011:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:ncs_6000:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-20064 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-20064
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.26740
percentile