Cyber Resilience

CVE-2023-20221

Medium

Published: 16 August 2023

Published
16 August 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0049 66.0th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-20221 is a medium-severity CSRF (CWE-352) vulnerability in Cisco Ip Phone 6821 With Multiplatform Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 34.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A vulnerability in the web-based management interface of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack against a user of the web-based management…

more

interface of an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading an authenticated user of the interface to follow a crafted link. A successful exploit could allow the attacker to perform a factory reset of the affected device, resulting in a Denial of Service (DoS) condition.

CWE(s)

Related Threats

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

Affected Assets

cisco
video phone 8875 firmware
≤ 2.0
cisco
ip phone 6821 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
cisco
ip phone 6825 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
cisco
ip phone 6841 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
cisco
ip phone 6851 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
cisco
ip phone 6861 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
cisco
ip phone 6871 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
cisco
ip conference phone 7832 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
cisco
ip phone 7811 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
cisco
ip phone 7821 with multiplatform firmware
11-3-1mppsr4upg, 11-3-1msr2upg, 11.0.0, 11.0.1, 11.0.1_msr1-1
+13 more product configuration(s) — see NVD for full list

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-352

Awareness training educates users on avoiding untrusted links and actions that can be exploited via CSRF.

addresses: CWE-352

Requiring user re-entry of credentials for sensitive actions prevents automated forgery of requests without active user participation.

addresses: CWE-352

Security testing regimens explicitly include checks for missing or ineffective anti-CSRF protections in web applications.

addresses: CWE-352

Detects anomalous request patterns consistent with cross-site request forgery.

References