Cyber Resilience

CVE-2021-1571

High

Published: 16 June 2021

Published
16 June 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0026 49.5th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-1571 is a high-severity Improper Authentication (CWE-287) vulnerability in Cisco Sf220-24 Firmware. Its CVSS base score is 7.2 (High).

Operationally, ranked at the 49.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Multiple vulnerabilities in the web-based management interface of Cisco Small Business 220 Series Smart Switches could allow an attacker to do the following: Hijack a user session Execute arbitrary commands as a root user on the underlying operating system Conduct…

more

a cross-site scripting (XSS) attack Conduct an HTML injection attack For more information about these vulnerabilities, see the Details section of this advisory.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cisco
sf220-24 firmware
≤ 1.2.0.6
cisco
sf220-24p firmware
≤ 1.2.0.6
cisco
sf220-48 firmware
≤ 1.2.0.6
cisco
sf220-48p firmware
≤ 1.2.0.6
cisco
sg220-26 firmware
≤ 1.2.0.6
cisco
sg220-26p firmware
≤ 1.2.0.6
cisco
sg220-28mp firmware
≤ 1.2.0.6
cisco
sg220-50 firmware
≤ 1.2.0.6
cisco
sg220-50p firmware
≤ 1.2.0.6

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-287 CWE-79

Penetration testing probes authentication mechanisms for bypasses, allowing identification and fixing of improper authentication issues.

addresses: CWE-287

Detects unauthorized successful logons resulting from improper authentication implementations.

addresses: CWE-287

Documented procedures ensure personnel are trained on authentication mechanisms, tangibly lowering the risk of improper authentication being exploited.

addresses: CWE-287

Security awareness training instructs users on secure authentication practices and avoiding credential compromise.

addresses: CWE-287

Training on authentication mechanisms and best practices decreases the occurrence of improper authentication.

addresses: CWE-287

Non-repudiation requires strong authentication mechanisms to irrefutably attribute performed actions to specific individuals or processes.

addresses: CWE-287

Session content review can reveal authentication bypasses or failures in session establishment.

addresses: CWE-287

Review of authentication-related audit records can detect improper authentication mechanisms or bypasses.

References