Credential disclosure via hardcoded decryption key
Published Jul 28, 2022 · Updated Apr 17, 2025
Hardcoded cryptographic key use in Ovarro TBox firmware 1.44 and earlier allows remote attackers to decrypt stored login credentials. TWinSoft relies on a custom TWinSoft user and an embedded key that decrypts encrypted passwords extracted from a TBox configuration file. Network access to retrieve the configuration is required; recovered plaintext credentials expose the protected device account.
Summary
What happened
Hardcoded cryptographic key use in Ovarro TBox firmware 1.44 and earlier allows remote attackers to decrypt stored login credentials. TWinSoft relies on a custom TWinSoft user and an embedded key that decrypts encrypted passwords extracted from a TBox configuration file. Network access to retrieve the configuration is required; recovered plaintext credentials expose the protected device account.
The record
- CVE
- CVE-2021-22644
- Published
- Jul 28, 2022
- Updated
- Apr 17, 2025
- Vendor
- Ovarro
- Product
- TBox
- Classifications
- CWE-321, CWE-798, T1552.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 23, 2021Exploitation reportedClaroty TBox protected-device exploit chain
- Jul 28, 2022CVE publishedPublication date reported by the CVE source.
- Apr 17, 2025Record 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=LT2
- Affected versionversion=MS-CPU32
- Affected versionversion=MS-CPU32-S2
- Affected versionversion=RM2
- Affected versionversion=TG2
What conditions does exploitation require?
What is affected?
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
- TBox RTU three-vulnerability proof-of-concept videoproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Claroty TBox protected-device exploit chainexploit chain
Technologies
Your stack
See the directory against your own environment.
Your stack
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