Root code execution via AT+CTGL format string
Published Oct 19, 2023 · Updated Sep 12, 2024
Format string injection in Motorola MTM5000 series firmware allows physically proximate attackers to execute arbitrary code via AT+CTGL. The AT command handler treats an attacker-controlled string as a format string, creating a write-anything-anywhere primitive inside the root-privileged teds_app binary. Access to the radio's serial modem-command interface is required; successful exploitation grants root-context ARM code execution and can enable extraction of radio key material.
Summary
What happened
Format string injection in Motorola MTM5000 series firmware allows physically proximate attackers to execute arbitrary code via AT+CTGL. The AT command handler treats an attacker-controlled string as a format string, creating a write-anything-anywhere primitive inside the root-privileged teds_app binary. Access to the radio's serial modem-command interface is required; successful exploitation grants root-context ARM code execution and can enable extraction of radio key material.
The record
- CVE
- CVE-2022-26941
- Published
- Oct 19, 2023
- Updated
- Sep 12, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-134
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 19, 2023CVE publishedPublication date reported by the CVE source.
- Sep 12, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Researcher-demonstrated MTM5400 exploitationreported exploitation
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo