Vulnerability Details : CVE-2021-1434
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system.
Products affected by CVE-2021-1434
- cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.11.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1w:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1x:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1z:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.1za:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.2a:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.2t:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.3a:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-1434
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-1434
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.6
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:C/A:C |
3.9
|
9.2
|
NIST | |
|
4.4
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
0.8
|
3.6
|
Cisco Systems, Inc. | |
|
6.0
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H |
0.8
|
5.2
|
NIST |
CWE ids for CVE-2021-1434
-
The product makes files or directories accessible to unauthorized actors, even though they should not be.Assigned by: ykramarz@cisco.com (Primary)
References for CVE-2021-1434
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDE
Cisco IOS XE SD-WAN Software Arbitrary File Corruption VulnerabilityVendor Advisory
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