CVE-2021-1244

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-1244
Multiple vulnerabilities in Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute unsigned code during the boot process on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

6.7 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ioxr-l-zNhcGCBt Vendor Advisory
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:8201:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8202:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8808:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8812:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8818:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:*
History

08 Feb 2021, 19:37

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 4.6
v3 : 6.7
CPE cpe:2.3:h:cisco:8818:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8202:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8201:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8812:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8808:-:*:*:*:*:*:*:*
References (CISCO) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ioxr-l-zNhcGCBt - (CISCO) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ioxr-l-zNhcGCBt - Vendor Advisory

04 Feb 2021, 19:15

Type Values Removed Values Added
Summary Multiple vulnerabilities in Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute unsigned code during the boot process on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Multiple vulnerabilities in Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute unsigned code during the boot process on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

04 Feb 2021, 18:27

Type Values Removed Values Added
New CVE
Information

Published : 2021-02-04 17:15

Updated : 2023-12-10 13:41

NVD link : CVE-2021-1244

Mitre link : CVE-2021-1244

CVE.ORG link : CVE-2021-1244

JSON object : View

Products Affected

cisco

  • ncs_540
  • 8808
  • 8201
  • 8812
  • 8818
  • 8202
  • ios_xr
CWE
CWE-347

Improper Verification of Cryptographic Signature