Auth bypass in Cisco Broadworks Application Delivery Platform

CVE-2023-20238

A vulnerability in the single sign-on (SSO) implementation of Cisco BroadWorks Application Delivery Platform and Cisco BroadWorks Xtended Services Platform could allow an unauthenticated, remote attacker to forge the credentials required to access an affected system. This vulnerability is due to the method used to validate SSO tokens. An attacker could exploit this vulnerability by authenticating to the application with forged credentials. A successful exploit could allow the attacker to commit toll fraud or to execute commands at the privilege level of the forged account. If that account is an Administrator account, the attacker would have the ability to view confidential information, modify customer settings, or modify settings for other users. To exploit this vulnerability, the attacker would need a valid user ID that is associated with an affected Cisco BroadWorks system.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.163 (96.8th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-20238: rose from 0.152 to 0.163.

EPSS over last 30 days · oldest: 0.152 · newest: 0.163 · change: +0.011

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-20238?
CVE-2023-20238 is a critical-severity vulnerability in Cisco Broadworks Application Delivery Platform, classified under Improper Authentication. CVSS score: 10.0/10. Published 2023-09-06.
How severe is CVE-2023-20238?
Critical severity. CVSS v3 base score is 10.0 out of 10.