Unauthenticated configuration disclosure via direct request
Published Jan 1, 2021 · Updated Aug 4, 2024
Information disclosure in Tenda N300 F3 12.01.01.48 allows remote attackers to read sensitive configuration via HTTP. The cgi-bin/DownloadCfg/RouterCfm.cfg endpoint serves configuration data without enforcing authorization, potentially exposing the http_passwd line and other secrets. An attacker needs network reachability to the router's web service and no credentials; the demonstrated consequence is confidentiality loss without evidence of configuration modification or service interruption.
Summary
What happened
Information disclosure in Tenda N300 F3 12.01.01.48 allows remote attackers to read sensitive configuration via HTTP. The cgi-bin/DownloadCfg/RouterCfm.cfg endpoint serves configuration data without enforcing authorization, potentially exposing the http_passwd line and other secrets. An attacker needs network reachability to the router's web service and no credentials; the demonstrated consequence is confidentiality loss without evidence of configuration modification or service interruption.
The record
- CVE
- CVE-2020-35391
- Published
- Jan 1, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-425, T1005
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 1, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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.
Public exploit references
- Tenda F3 V4 Router Exploit & File Downloaderfunctional · demonstrated
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Technologies
Your stack
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Your stack
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