--- title: SSH Protocol Vulnerable to MITM Attack | daily.dev description: The SSH protocol is vulnerable to MITM attacks due to certain encryption modes. There is ongoing debate about whether using a caching DNS resolver for domain... canonical: https://daily.dev/posts/ssh-protocol-vulnerable-to-mitm-attack-rg9esjaj0 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: SSH Protocol Vulnerable to MITM Attack | daily.dev og:description: The SSH protocol is vulnerable to MITM attacks due to certain encryption modes. There is ongoing debate about whether using a caching DNS resolver for domain... og:url: https://daily.dev/posts/ssh-protocol-vulnerable-to-mitm-attack-rg9esjaj0 og:image: https://api.daily.dev/og/posts/Rg9esJAj0.png og:image:alt: SSH Protocol Vulnerable to MITM Attack og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # SSH Protocol Vulnerable to MITM Attack **[Feisty Duck](https://daily.dev/sources/feistyduck)** · 5 min read · 0 upvotes · 0 comments ## Summary The SSH protocol is vulnerable to MITM attacks due to certain encryption modes. There is ongoing debate about whether using a caching DNS resolver for domain name validation constitutes delegation to a third party. AI-assisted code writing and translation have shown limitations in security and accuracy. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#cryptography](https://daily.dev/tags/cryptography), [#dns](https://daily.dev/tags/dns), [#pki](https://daily.dev/tags/pki), [#security](https://daily.dev/tags/security), [#ssh](https://daily.dev/tags/ssh) [View this post on daily.dev](https://daily.dev/posts/ssh-protocol-vulnerable-to-mitm-attack-rg9esjaj0) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"SSH Protocol Vulnerable to MITM Attack","url":"https://daily.dev/posts/ssh-protocol-vulnerable-to-mitm-attack-rg9esjaj0","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/ssh-protocol-vulnerable-to-mitm-attack-rg9esjaj0"},"datePublished":"2023-12-29T11:12:18.010Z","dateModified":"2026-03-30T02:18:41.476Z","description":"The SSH protocol is vulnerable to MITM attacks due to certain encryption modes. There is ongoing debate about whether using a caching DNS resolver for domain...","image":"https://media.daily.dev/image/upload/s--1KxV4ohY--/f_auto/v1722860400/public/Placeholder%2007","thumbnailUrl":"https://media.daily.dev/image/upload/s--1KxV4ohY--/f_auto/v1722860400/public/Placeholder%2007","isAccessibleForFree":true,"articleSection":"Feisty Duck","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Feisty Duck","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/59577cbb7af9485c86e436fa6bacece0","url":"https://daily.dev/sources/feistyduck"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/ssh-protocol-vulnerable-to-mitm-attack-rg9esjaj0","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"cryptography,dns,pki,security,ssh","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Feisty Duck","item":"https://daily.dev/sources/feistyduck"},{"@type":"ListItem","position":3,"name":"SSH Protocol Vulnerable to MITM Attack"}]} ```