Vulnerability Details : CVE-2021-28485
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.
Vulnerability category: Directory traversal
Products affected by CVE-2021-28485
- Ericsson » Mobile Switching Center Server Bc 18a FirmwareVersions from including (>=) is_3.1 and before (<) is_3.1_cp22cpe:2.3:o:ericsson:mobile_switching_center_server_bc_18a_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-28485
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 26 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-28485
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2021-28485
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-28485
-
https://www.ericsson.com/en/about-us/security/psirt
Ericsson PSIRT - Product Security Incident Response TeamVendor Advisory
-
https://www.gruppotim.it/it/footer/red-team.html
Gruppo TIM | Vulnerability Research & AdvisorThird Party Advisory
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