CVE-2021-28485
Last modified
CVE-2021-28485 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ericsson | Mobile Switching Center Server Bc 18a Firmware | >= is_3.1, < is_3.1_cp22 |
References
- https://www.ericsson.com/en/about-us/security/psirtVendor Advisory
- https://www.gruppotim.it/it/footer/red-team.htmlThird Party Advisory
- https://www.ericsson.com/en/about-us/security/psirtVendor Advisory
- https://www.gruppotim.it/it/footer/red-team.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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