Administrative-password disclosure via TNAS User-Agent header
Published Feb 7, 2023 · Updated Oct 21, 2025
Information disclosure in TerraMaster NAS 4.2.29 and earlier allows remote attackers to read the administrative password without authentication. The module/api.php?mobile/webNasIPS endpoint accepts the TNAS User-Agent header and returns the PWD field in its response. Network access to the management service is the only reported gate; the disclosed credential enables administrative access and can support a separate command-execution chain.
Summary
What happened
Information disclosure in TerraMaster NAS 4.2.29 and earlier allows remote attackers to read the administrative password without authentication. The module/api.php?mobile/webNasIPS endpoint accepts the TNAS User-Agent header and returns the PWD field in its response. Network access to the management service is the only reported gate; the disclosed credential enables administrative access and can support a separate command-execution chain.
The record
- CVE
- CVE-2022-24990
- Published
- Feb 7, 2023
- Updated
- Oct 21, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-306, T1552
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 7, 2023CVE publishedPublication date reported by the CVE source.
- Feb 10, 2023Exploitation reportedCISA Known Exploited Vulnerabilities listing
- Oct 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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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.
View daily counts
| Reporting day | Unique IPs |
|---|---|
| Sep 10, 2026 | 1 |
| Sep 11, 2026 | Unavailable |
| Sep 12, 2026 | Unavailable |
| Sep 13, 2026 | Unavailable |
| Sep 14, 2026 | 1 |
| Sep 15, 2026 | 1 |
| Sep 16, 2026 | 1 |
Weakness, pattern, technique
Public exploit references
- CVE-2022-24990 TerraMaster TOS exploit repositoryfunctional · demonstrated
- Metasploit TerraMaster unauthenticated RCE chainweaponized · validated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Ransomware use of TerraMaster OS exploitationransomware
- CISA Known Exploited Vulnerabilities listingknown exploited catalog
Technologies
Your stack
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Your stack
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