Vulnerability Details : CVE-2021-1555
Multiple vulnerabilities in the web-based management interface of certain Cisco Small Business 100, 300, and 500 Series Wireless Access Points could allow an authenticated, remote attacker to perform command injection attacks against an affected device. These vulnerabilities are due to improper validation of user-supplied input. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the device. To exploit these vulnerabilities, the attacker must have valid administrative credentials for the device.
Products affected by CVE-2021-1555
- cpe:2.3:o:cisco:wap361_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:wap150_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:wap125_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:wap131_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:wap351_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:wap581_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-1555
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-1555
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
NIST | |
4.7
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L |
1.2
|
3.4
|
Cisco Systems, Inc. | |
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
NIST |
CWE ids for CVE-2021-1555
-
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)
References for CVE-2021-1555
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-wap-inject-Mp9FSdG
Cisco Small Business 100, 300, and 500 Series Wireless Access Points Command Injection VulnerabilitiesVendor Advisory
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