CVE-2021-28485
MEDIUMEricsson MSC Server BC 18A Firmware IS 3.1 - Authenticated Path Traversal via SIS Web App
Title source: llmDescription
In Ericsson Mobile Switching Center Server (MSC-S) before IS 3.1 CP22, the SIS web application allows relative path traversal via a specific parameter in the https request after authentication, which allows access to files on the system that are not intended to be accessible via the web application.
References (2)
Core 2
Core References
Vendor Advisory
https://www.ericsson.com/en/about-us/security/psirt
Third Party Advisory
https://www.gruppotim.it/it/footer/red-team.html
Scores
CVSS v3
4.3
EPSS
0.0055
EPSS Percentile
41.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (1)
ericsson/mobile_switching_center_server_bc_18a_firmware
is_3.1 - is_3.1_cp22
Published
Sep 14, 2023
Tracked Since
Feb 18, 2026