Vulnerability Monitor

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CVE-2022-20817


A vulnerability in Cisco Unified IP Phones could allow an unauthenticated, remote attacker to impersonate another user's phone if the Cisco Unified Communications Manager (CUCM) is in secure mode. This vulnerability is due to improper key generation during the manufacturing process that could result in duplicated manufactured keys installed on multiple devices. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on the secure communication between the phone and the CUCM. A successful exploit could allow the attacker to impersonate another user's phone. This vulnerability cannot be addressed with software updates. There is a workaround that addresses this vulnerability.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.4, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), for affected systems. Impacting 22 products from cisco, from cisco, from cisco and 19 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2022-06-15T18:15:08.997

Last Modified

2024-11-21T06:43:36.787

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

CVSSv2 Vector

AV:N/AC:H/Au:N/C:P/I:P/A:N

  • Access Vector: NETWORK
  • Access Complexity: HIGH
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

4.9

Impact Score

4.9

Weaknesses
  • Type: Secondary
    CWE-338
  • Type: Primary
    CWE-338

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco unified_ip_phone_6911_firmware - Yes
Hardware cisco unified_ip_phone_6911 - No
Operating System cisco unified_ip_phone_6921_firmware - Yes
Hardware cisco unified_ip_phone_6921 - No
Operating System cisco unified_ip_phone_6941_firmware - Yes
Hardware cisco unified_ip_phone_6941 - No
Operating System cisco unified_ip_phone_6945_firmware - Yes
Hardware cisco unified_ip_phone_6945 - No
Operating System cisco unified_ip_phone_6961_firmware - Yes
Hardware cisco unified_ip_phone_6961 - No
Operating System cisco unified_ip_phone_8941_firmware - Yes
Hardware cisco unified_ip_phone_8941 - No
Operating System cisco unified_ip_phone_8945_firmware - Yes
Hardware cisco unified_ip_phone_8945 - No
Operating System cisco unified_ip_phone_8961_firmware - Yes
Hardware cisco unified_ip_phone_8961 - No
Operating System cisco unified_ip_phone_9951_firmware - Yes
Hardware cisco unified_ip_phone_9951 - No
Operating System cisco unified_ip_phone_9971_firmware - Yes
Hardware cisco unified_ip_phone_9971 - No
Operating System cisco ata_187_analog_telephone_adapter_firmware * Yes
Hardware cisco ata_187_analog_telephone_adapter - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.