CVE-2024-41988

Missing Authentication for Critical Function vulnerability in TEM Opera Plus FM Family Transmitter

Published Oct 3, 2024 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed

Description

TEM Opera Plus FM Family Transmitter allows access to an unprotected endpoint that allows MPFS File System binary image upload without authentication. This file system serves as the basis for the HTTP2 web server module but is also used by the SNMP module and is available to other applications that require basic read-only storage capabilities. This can be exploited to overwrite the flash program memory that holds the web server's main interfaces and execute arbitrary code.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

TEM

Opera Plus FM Family Transmitter

unaffected

Version	Status	Constraints
`35.45`	affected	—

No data.

No data available yet.

Remediation

Vendor Workaround

TEM has not responded to requests to work with CISA to mitigate these vulnerabilities. Users of the affected products are encouraged to contact TEM https://www.tem-italy.it/en/contacts/ for additional information.

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2024-39310	TEM Opera Plus FM Family Transmitter allows access to an unprotected endpoint that allows MPFS File System binary image upload without authentication. This file system serves as the basis for the HTTP2 web server module but is also used by the SNMP module and is available to other applications that require basic read-only storage capabilities. This can be exploited to overwrite the flash program memory that holds the web server's main interfaces and execute arbitrary code.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.590% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://www.cisa.gov/news-events/ics-advisories/icsa-24-277-01

History

Oct 3, 2024 7:30 PM First appearance in the feed. Affected versions updated. Affected vendors updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
First Time appeared		Tem Tem opera Plus Fm Family Transmitter
CPEs		cpe:2.3:a:tem:opera_plus_fm_family_transmitter::::::::
Vendors & Products		Tem Tem opera Plus Fm Family Transmitter
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Oct 3, 2024 5:45 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		TEM Opera Plus FM Family Transmitter allows access to an unprotected endpoint that allows MPFS File System binary image upload without authentication. This file system serves as the basis for the HTTP2 web server module but is also used by the SNMP module and is available to other applications that require basic read-only storage capabilities. This can be exploited to overwrite the flash program memory that holds the web server's main interfaces and execute arbitrary code.
Title		Missing Authentication for Critical Function vulnerability in TEM Opera Plus FM Family Transmitter
Weaknesses		CWE-306
References		https://www.cisa.gov/news-events/ics-advisories/icsa-24-277-01
Metrics		cvssV4_0 `{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}`