PT-2023-2264 · Cisco · Cisco Ios Xr

Chris Watts · Published 2023-03-08 · Updated 2024-11-14 · CVE-2023-20064

Positive Technologies (AI Summary)

CVSS v2.0

6.1

Medium

Base vector

AV:L/AC:L/Au:N/C:C/I:P/A:P

Name of the Vulnerable Software and Affected Versions Cisco IOS XR Software (affected versions not specified)

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.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. However, Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Missing Authorization

Information Disclosure

Weakness Enumeration

CWE-862

CWE-200

Related Identifiers

BDU:2023-02023

CVE-2023-20064

Affected Products

Cisco Ios Xr

References · 8

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-load-infodisc-9rdOr5Fq · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02023 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-20064 · Security Note
• https://osv.dev/vulnerability/CVE-2023-20064 · Vendor Advisory
• https://twitter.com/SystemTek_UK/status/1857157087811211444 · Twitter Post
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ioxr-l-zNhcGCBt · Note
• https://t.me/cvenotify/45908 · Telegram Post
• https://t.me/true_secator/4152 · Telegram Post