PT-2021-1922 · Cisco · Cisco Ios Xr

Published 2021-02-03 · Updated 2021-02-08 · CVE-2021-1128

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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

Description The issue is related to the command-line interface (CLI) parser of Cisco IOS XR Software, which could allow an authenticated, local attacker to view more information than their privileges allow. This is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit this by using a specific command at the command line, potentially obtaining sensitive information within the configuration that otherwise might not have been accessible beyond the privileges of the invoking user.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-201

Related Identifiers

BDU:2021-00713

CVE-2021-1128

Affected Products

Cisco Ios Xr

References · 4

• https://bdu.fstec.ru/vul/2021-00713 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-infodisc-4mtm9Gyt · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1128 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-1128 · Security Note