Root code execution via hardcoded SD-card key
Published Sep 18, 2024 · Updated Sep 20, 2024
Use of a hardcoded encryption key in Victure PC420 firmware 1.1.39 allows physically proximate attackers to execute code as root. The anyka_ipc main function decrypts enable_telnetd.dat from a mounted Micro SD card with 3DES and the hardcoded key 123, writes the plaintext to /tmp/autoexec.sh, and executes it as root during startup. Physical access to insert the crafted card and restart the camera is required; successful exploitation grants full control of the appliance.
Summary
What happened
Use of a hardcoded encryption key in Victure PC420 firmware 1.1.39 allows physically proximate attackers to execute code as root. The anyka_ipc main function decrypts enable_telnetd.dat from a mounted Micro SD card with 3DES and the hardcoded key 123, writes the plaintext to /tmp/autoexec.sh, and executes it as root during startup. Physical access to insert the crafted card and restart the camera is required; successful exploitation grants full control of the appliance.
The record
- CVE
- CVE-2023-41612
- Published
- Sep 18, 2024
- Updated
- Sep 20, 2024
- Vendor
- Victure
- Product
- Victure PC420 Firmware
- Classifications
- CWE-798, T1547
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 18, 2024CVE publishedPublication date reported by the CVE source.
- Sep 20, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.1.39
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
- Crafted 3DES Micro SD startup payloadfunctional · demonstrated
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Technologies
Your stack
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Your stack
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