cbcvebase.
CVE-2024-20419
published 2024-07-17

CVE-2024-20419: A vulnerability in the authentication system of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an unauthenticated, remote attacker to change…

PriorityP196critical10CVSS 3.1
AVNACLPRNUINSCCHIHAH
ITWEXPLOITVulnCheck KEV
Exploited in the wild
EPSS
80.64%
99.6th percentile
A vulnerability in the authentication system of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an unauthenticated, remote attacker to change the password of any user, including administrative users. This vulnerability is due to improper implementation of the password-change process. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow an attacker to access the web UI or API with the privileges of the compromised user.

Affected

3 ranges
VendorProductVersion rangeFixed in
ciscocisco_smart_software_manager_on-prem
ciscosmart
ciscosmart_software_manager_on-prem< 8-2021128-202112

Detection & IOCsextracted from sources · hover to see the quote

url/backend/settings/oauth_adfs?hostname=polar
url/backend/reset_password/generate_code
url/backend/reset_password
cookieXSRF-TOKEN
cookie_lic_engine_session
  • Look for unauthenticated GET requests to /backend/settings/oauth_adfs as the initial token-harvesting step of the exploit.
  • Monitor for the X-Xsrf-Token header being supplied in unauthenticated POST requests to the SSM On-Prem reset_password endpoints, indicating automated exploit tooling.
  • Alert on JSON POST bodies containing both 'uid' and 'auth_token' fields to /backend/reset_password, which is the final password-change step of the exploit.
  • A Metasploit auxiliary module exists for this vulnerability; detect exploitation attempts originating from Metasploit user-agent strings against SSM On-Prem HTTP endpoints.
  • Public PoC exploit code is available; treat any SSM On-Prem version 8-202206 and earlier as actively exploitable and prioritize patching to 8-202212 or Release 9.
  • ·No workarounds exist for CVE-2024-20419; the only remediation is upgrading to a fixed release (8-202212 or Release 9). Detection/blocking rules alone are insufficient.
  • ·The vulnerability also affects installations earlier than Release 7.0, marketed as Cisco Smart Software Manager Satellite (SSM Satellite), not just SSM On-Prem.
  • ·The exploit requires no user interaction and no prior privileges, making it fully remotely exploitable with low attack complexity — CVSS score is 10.0.

CVSS provenance

nvdv3.110.0CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
vulncheck10.0CRITICAL
vendor_cisco10.0CRITICAL
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