CVE-2021-1436

CVSS V2 Medium 4.7 CVSS V3 Medium 4.4
Description
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to conduct path traversal attacks and obtain read access to sensitive files on an affected system. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to view arbitrary files on the affected system.
Overview
  • CVE ID
  • CVE-2021-1436
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-03-24T20:15:14
  • Last Modified Date
  • 2021-03-29T19:56:56
Weakness Enumerations
CWE URL
CWE-22 http://cwe.mitre.org/data/definitions/22.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:cisco:ios_xe:3.15.1xbs:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:3.15.2xbs:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.11.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1w:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1x:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1z:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.1za:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.2a:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.3a:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:16.12.4a:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.1.1a:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.1.1s:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.1.1t:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.1.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:ios_xe:17.2.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:C/I:N/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.7
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 4.4
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-sdwpathtrav-nsrue2Mt Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-1436
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1436
History
Created Old Value New Value Data Type Notes
2022-05-10 07:18:16 Added to TrackCVE
2022-12-06 00:20:36 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-06 00:20:36 2021-03-24T20:15Z 2021-03-24T20:15:14 CVE Published Date updated
2022-12-06 00:20:36 2021-03-29T19:56:56 CVE Modified Date updated
2022-12-06 00:20:36 Analyzed Vulnerability Status updated