Protected-file access via encoded path traversal
Published Nov 9, 2023 · Updated Sep 3, 2024
Relative path traversal in Telit Cinterion BGS5, EHS5/6/8, PDS5/6/8, ELS61/81, and PLS62 allows local users to read or write protected files. The Java Micro Edition FileConnection open routine checks for literal parent-directory segments before URL-decoding the requested path, so an encoded segment bypasses the virtual-root filter. A low-privilege MIDlet running on the module can escape the assigned virtual directory and access protected native-filesystem content.
Summary
What happened
Relative path traversal in Telit Cinterion BGS5, EHS5/6/8, PDS5/6/8, ELS61/81, and PLS62 allows local users to read or write protected files. The Java Micro Edition FileConnection open routine checks for literal parent-directory segments before URL-decoding the requested path, so an encoded segment bypasses the virtual-root filter. A low-privilege MIDlet running on the module can escape the assigned virtual directory and access protected native-filesystem content.
The record
- CVE
- CVE-2023-47613
- Published
- Nov 9, 2023
- Updated
- Sep 3, 2024
- Vendor
- Telit Cinterion
- Product
- EHS8
- Classifications
- CWE-23, CWE-22, T1565.001, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 9, 2023CVE publishedPublication date reported by the CVE source.
- Sep 3, 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?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
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
- Kaspersky FileConnection encoded traversal demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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