CVE-2020-35391
What it is
Tenda N300 F3 12.01.01.48 devices allow remote attackers to obtain sensitive information (possibly including an http_passwd line) via a direct request for cgi-bin/DownloadCfg/RouterCfm.cfg, a related issue to CVE-2017-14942. NOTE: the vulnerability report may suggest that either a ? character must be placed after the RouterCfm.cfg filename, or that the HTTP request headers must be unusual, but it is not known why these are relevant to the device's HTTP response behavior.
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 35.2% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 35.2% in the next 30 days (EPSS).
- Severity: 9.6 CRITICAL (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 35.2% · EPSS, next 30 days
- Weakness
- CWE-425
- Record status
- Modified
Affected
- Tenda f3 Firmware 12.01.01.48
Attack profile CVSS 3.1 · 9.6
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2020-35391.md and follow it. Check whether this project is affected by CVE-2020-35391. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- http://packetstormsecurity.com/files/171773/Tenda-N300-F3-12.01.01.48-Header-Processing.html
- https://medium.com/%40signalhilltech/tenda-n300-authentication-bypass-via-malformed-http-request-header-5b8744ca685e
- http://packetstormsecurity.com/files/171773/Tenda-N300-F3-12.01.01.48-Header-Processing.html
- https://medium.com/%40signalhilltech/tenda-n300-authentication-bypass-via-malformed-http-request-header-5b8744ca685e