Cisco IP Phone Duplicate Key Vulnerability (Cisco Cisco IP Phones with Multiplatform Firmware)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.21 % · percentile 68 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
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.
Weaknesses (CWE)
- CWE-338 — Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | cisco |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.0 | AV:N/AC:H/Au:N/C:P/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-26067
- GCVE · GCVE-0-2022-20817
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:unified_ip_phone_6911_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_6921_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_6941_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_6945_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_6961_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_8941_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_8945_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_8961_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_9951_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:unified_ip_phone_9971_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:cisco:ata_187_analog_telephone_adapter_firmware:*:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco IP Phones with Multiplatform Firmware | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |