Arbitrary file read-write via unprotected FTP API
Published Nov 9, 2023 · Updated Sep 4, 2024
Improper file access in BGS5, EHS5/6/8, PDS5/6/8, ELS61/81, and PLS62 allows physically proximate attackers to read or write any file. The documented FTP AT-command API lacks access controls; its JRC MIDlet runs in the manufacturer security domain and accepts transfers for any modem filesystem path. A wired connection such as USB and physical access are required, exposing system data, hidden directories, and executable MIDlet files to modification.
Summary
What happened
Improper file access in BGS5, EHS5/6/8, PDS5/6/8, ELS61/81, and PLS62 allows physically proximate attackers to read or write any file. The documented FTP AT-command API lacks access controls; its JRC MIDlet runs in the manufacturer security domain and accepts transfers for any modem filesystem path. A wired connection such as USB and physical access are required, exposing system data, hidden directories, and executable MIDlet files to modification.
The record
- CVE
- CVE-2023-47612
- Published
- Nov 9, 2023
- Updated
- Sep 4, 2024
- Vendor
- Telit Cinterion
- Product
- EHS8
- Classifications
- CWE-552, T1005
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 9, 2023CVE publishedPublication date reported by the CVE source.
- Sep 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=ehs8
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- FTP AT-command filesystem access demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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