2026-01-27

Telnetd (まとめ)

vul.hatenadiary.com

【ニュース】

■2026年

◇2026年1月

◆Hackers exploit critical telnetd auth bypass flaw to get root (BleepingComputer, 2026/01/23 11:21)
[ハッカーが重大なtelnetd認証バイパス脆弱性を悪用し、root権限を取得]
https://www.bleepingcomputer.com/news/security/hackers-exploit-critical-telnetd-auth-bypass-flaw-to-get-root/
⇒ https://malware-log.hatenablog.com/entry/2026/01/23/000000_1

◆Hackers Exploiting telnetd Vulnerability for Root Access – Public PoC Released (Cyber Security News, 2026/01/24)
[ハッカーがtelnetdの脆弱性を悪用しルート権限を取得 – 公開PoCが公開される]
https://cybersecuritynews.com/telnetd-vulnerability-exploited/
⇒ https://malware-log.hatenablog.com/entry/2026/01/24/000000_2

◆Organizations Warned of Exploited Linux Vulnerabilities (SecurityWeek, 2026/01/27)
[組織は悪用されたLinuxの脆弱性について警告を受ける]

VulnerabilitiesOrganizations Warned of Exploited Linux Vulnerabilities
The flaws allow threat actors to obtain root privileges or bypass authentication via Telnet and gain shell access as root.
[これらの欠陥により、脅威アクターはTelnet経由でroot権限を取得したり認証を迂回したりして、rootとしてシェルアクセスを得ることが可能となる]

https://www.securityweek.com/organizations-warned-of-exploited-linux-vulnerabilities/
⇒ https://malware-log.hatenablog.com/entry/2026/01/27/000000_1

【ブログ】

■2026年

◇2026年1月

◆-f Around and Find Out: 18 Hours of Unsolicited Telnet Houseguests (GreyNoise, 2026/01/22)
[-f 探検と発見：18時間にわたる不審なTelnet侵入者]

Detailed analysis of the Inetutils Telnetd ‘-f’ authentication bypass, covering 18 exploit attempts, attacker tactics, and detection insights.
[Inetutils Telnetdの「-f」オプションによる認証バイパスに関する詳細な分析。18件の攻撃試行、攻撃者の戦術、および検知に関する知見を網羅しています]

https://www.labs.greynoise.io/grimoire/2026-01-22-f-around-and-find-out-18-hours-of-unsolicited-houseguests/index.html
⇒ https://malware-log.hatenablog.com/entry/2026/01/22/000000_9

【検索】

■Google

google: Telnetd
google: Telnetd GNU Inetutils
google: GNU Inetutils

google:news: Telnetd
google:news: Telnetd GNU Inetutils
google:news: GNU Inetutils

google: site:virustotal.com Telnetd
google: site:virustotal.com Telnetd GNU Inetutils

google: site:github.com Telnetd
google: site:github.com Telnetd GNU Inetutils

■Bing

https://www.bing.com/search?q=Telnetd
https://www.bing.com/search?q=Telnetd%20GNU%20Inetutils
https://www.bing.com/search?q=GNU%20Inetutils

https://www.bing.com/news/search?q=Telnetd
https://www.bing.com/news/search?q=Telnetd%20GNU%20Inetutils
https://www.bing.com/news/search?q=GNU%20Inetutils

■Twitter

https://twitter.com/search?q=%23Telnetd
https://twitter.com/search?q=%23Telnetd%20GNU%20Inetutils

https://twitter.com/hashtag/Telnetd
https://twitter.com/hashtag/Telnetd%20GNU%20Inetutils