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CVE-2021-20646: Cross-site request forgery (CSRF) vulnerability in ELECOM WRC-300FEBK-A allows remote attackers to hijack the authentication of administrators and execute an arbitrary request via unspecified vecto...
CVE-2021-20646 · published 5 years ago
Summary
Cross-site request forgery (CSRF) vulnerability in ELECOM WRC-300FEBK-A allows remote attackers to hijack the authentication of administrators and execute an arbitrary request via unspecified vector. As a result, the device settings may be altered and/or telnet daemon may be started.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| elecom | wrc-300febk-a_firmware |
All versions
cpe:2.3:o:elecom:wrc-300febk-a_firmware:-:*:*:*:*:*:*:* |
Original advisory text
Cross-site request forgery (CSRF) vulnerability in ELECOM WRC-300FEBK-A allows remote attackers to hijack the authentication of administrators and execute an arbitrary request via unspecified vecto...
Cross-site request forgery (CSRF) vulnerability in ELECOM WRC-300FEBK-A allows remote attackers to hijack the authentication of administrators and execute an arbitrary request via unspecified vector. As a result, the device settings may be altered and/or telnet daemon may be started.
References
- https://jvn.jp/en/jp/JVN47580234/index.html Third Party Advisory
- https://www.elecom.co.jp/news/security/20210126-01/ Vendor Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker partial control (estimated)
Type
CWE-352Cross-Site Request Forgery (CSRF)
Timeline
Published12 Feb 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-20646 · NVD
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