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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-1370 Detail

Description

A vulnerability in a CLI command of Cisco IOS XR Software for the Cisco 8000 Series Routers and Network Convergence System 540 Series Routers running NCS540L software images could allow an authenticated, local attacker to elevate their privilege to root. To exploit this vulnerability, an attacker would need to have a valid account on an affected device. The vulnerability is due to insufficient validation of command line arguments. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the prompt. A successful exploit could allow an attacker with low-level privileges to escalate their privilege level to root.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Nist CVSS score does not match with CNA score
CNA:  Cisco Systems, Inc.
Base Score:  7.8 HIGH
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-pe-QpzCAePe Vendor Advisory 
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-pe-QpzCAePe Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') Cisco Systems, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
7.0.12
 cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
7.1.0		Up to (excluding)
7.2.1
Running on/with
 cpe:2.3:h:cisco:8201:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:h:cisco:8202:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:h:cisco:8808:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:h:cisco:8812:-:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:h:cisco:8818:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
7.2.1
Running on/with
 cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-1370
NVD Published Date:
02/04/2021
NVD Last Modified:
11/21/2024
Source:
Cisco Systems, Inc.