{"id":55495,"date":"2024-03-05T01:47:16","date_gmt":"2024-03-05T01:47:16","guid":{"rendered":"https:\/\/www.threatshub.org\/blog\/cloudflare-wants-to-put-a-firewall-in-front-of-your-llm\/"},"modified":"2024-03-05T01:47:16","modified_gmt":"2024-03-05T01:47:16","slug":"cloudflare-wants-to-put-a-firewall-in-front-of-your-llm","status":"publish","type":"post","link":"https:\/\/www.threatshub.org\/blog\/cloudflare-wants-to-put-a-firewall-in-front-of-your-llm\/","title":{"rendered":"Cloudflare wants to put a firewall in front of your LLM"},"content":{"rendered":"<p>Cloudflare has tweaked its web application firewall (WAF) to add protections for applications using large language models.<\/p>\n<p>The service, dubbed \u201cFirewall for AI,\u201d is available to the cloud and security provider&#8217;s Application Security Advanced enterprise customers. At launch, it includes two capabilities: Advanced Rate Limiting, and Sensitive Data Detection.<\/p>\n<p>Advanced Rate Limiting allows the customer to create a policy that sets a maximum rate of requests performed by an individual IP address or API key during a session. Doing so helps to prevent distributed denial of service (DDoS) attacks against the model, or other situations that would overwhelm the LLM with requests and disrupt its ability to process legitimate requests.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"condor\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=2&amp;c=2ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>The second feature, Sensitive Data Detection, prevents LLMs from leaking confidential data in responses to queries. It also allows customers to set WAF rules that scan for financial information like credit card numbers, and secrets such as API keys, to ensure that these sensitive details don&#8217;t end up in an LLM&#8217;s responses.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xmd=\",fluid,mpu,leaderboard,\" data-lg=\",fluid,mpu,leaderboard,\" data-xlg=\",fluid,billboard,superleaderboard,mpu,leaderboard,\" data-xxlg=\",fluid,billboard,superleaderboard,brandwidth,brandimpact,leaderboard,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<div class=\"adun_eagle_desktop_story_wrapper\">\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"mid\" data-raptor=\"eagle\" data-xxlg=\",mpu,dmpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<\/p><\/div>\n<p>Sadly, there&#8217;s not yet a firewall rule to prevent chatty models from emitting bad or made-up info.<\/p>\n<p>In the future, customers will be able to &#8220;create their own custom fingerprints&#8221; and tailor what information the models can \u2013 and cannot \u2013 disclose, according to Daniele Molteni, Cloudflare&#8217;s group product manager, who <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/blog.cloudflare.com\/firewall-for-ai\">announced<\/a> the Firewall for AI on Monday.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" data-pos=\"top\" data-raptor=\"falcon\" data-xsm=\",fluid,mpu,\" data-sm=\",fluid,mpu,\" data-md=\",fluid,mpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=4&amp;c=44ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D426raptor%3Dfalcon%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>Customers can find both Advanced Rate Limiting and Sensitive Data Detection in the Cloudflare dashboard&#8217;s WAF section.<\/p>\n<p>In coming months, Cloudflare plans to <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/cloudflare.com\/lp\/firewall-for-ai\/\">test a beta version<\/a> of a prompt validation feature. This will help prevent <a target=\"_blank\" href=\"https:\/\/www.theregister.com\/2023\/04\/26\/simon_willison_prompt_injection\/\" rel=\"noopener\">prompt injection attacks<\/a> that see users designs prompts to jump guardrails intended to prevent LLMs creating inappropriate or illegal content.<\/p>\n<p>The feature \u2013 currently under development \u2013 will analyze every prompt and rate it with a score indicating potential as an attack on LLMs. It will also tag the prompt based on predefined categories. The score ranges from 1 to 99, indicating the likelihood of a prompt injection attack, with lower numbers suggesting likely malicious intent.<\/p>\n<div aria-hidden=\"true\" class=\"adun\" id=\"story_eagle_xsm_sm_md_xmd_lg_xlg\" data-pos=\"mid\" data-raptor=\"eagle\" data-xsm=\",mpu,dmpu,\" data-sm=\",mpu,dmpu,\" data-md=\",mpu,dmpu,\" data-xmd=\",mpu,dmpu,\" data-lg=\",mpu,dmpu,\" data-xlg=\",mpu,dmpu,\"> <noscript> <a href=\"https:\/\/pubads.g.doubleclick.net\/gampad\/jump?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" target=\"_blank\" rel=\"noopener\"> <img decoding=\"async\" src=\"https:\/\/pubads.g.doubleclick.net\/gampad\/ad?co=1&amp;iu=\/6978\/reg_security\/front&amp;sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&amp;tile=3&amp;c=33ZebIV4K3gUZ4JB4HbOj@SQAAANE&amp;t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0\" alt> <\/a> <\/noscript> <\/div>\n<p>Customers can then create a WAF rule to block or allow requests based on their score, and they can combine this score with other metrics \u2013 a bot or attack score, for example \u2013 to determine whether to the prompt reaches the LLM.<\/p>\n<p>Plus, it will also allow customers to block specific topics based on prompts it deems offensive \u2013 or those about sensitive topics such as religion, sex or politics, we&#8217;re told.<\/p>\n<p>The firewall can be deployed in front of any LLM, Molteni told <em>The Register<\/em>. This includes the well-known, public LLM tools like OpenAI&#8217;s GPT and Anthropic&#8217;s Claude, or private LLMs designed for in-house use. Models sold to customers as part of a product or service are also covered.<\/p>\n<p>According to Molteni, &#8220;Firewall for AI can be deployed in front of any model, whether they are hosted on Cloudflare Workers AI or on other platforms or hosting providers,&#8221; the only proviso being that &#8220;the request [and] response is proxied through Cloudflare.&#8221;<\/p>\n<p>Cloudflare&#8217;s focus on AI security follows a series of LLM missteps and security snafus. As tech giants push to embed LLMs in many of their products and services, the results have been often included <a target=\"_blank\" href=\"https:\/\/www.theregister.com\/2024\/02\/27\/google_gemini_return\/\" rel=\"noopener\">errors<\/a> and <a target=\"_blank\" href=\"https:\/\/www.theregister.com\/2024\/02\/26\/ai_in_brief\/\" rel=\"noopener\">fabrications<\/a> \u2013 and sometimes even potentially <a target=\"_blank\" href=\"https:\/\/www.theregister.com\/2024\/01\/16\/poisoned_ai_models\/\" rel=\"noopener\">vulnerable code<\/a>.<\/p>\n<p>To address these emerging security issues, some developers are adopting an approach to security tailored to AI (Cloudflare calls its framework <a target=\"_blank\" rel=\"nofollow noopener\" href=\"https:\/\/blog.cloudflare.com\/defensive-ai\">Defensive AI<\/a>), while Google and others have expanded their <a target=\"_blank\" href=\"https:\/\/www.theregister.com\/2023\/10\/27\/google_ai_bounty_hackerone\/\" rel=\"noopener\">bug bounty programs<\/a> to include AI products and LLM attacks.<\/p>\n<p>Considering how both the technology itself and the strategies to protect it against attacks are still in their infancy, there&#8217;s sure to be a lot more noise and hype around AI and LLM security \u2013 especially as we approach the season in which big vendors stage their flagship conventions. Expect a lot of talk on this at RSA and Black Hat. \u00ae<\/p>\n<p> READ MORE <a href=\"https:\/\/go.theregister.com\/feed\/www.theregister.com\/2024\/03\/05\/cloudflare_firewall_ai\/\">HERE<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Claims to protect against DDoS, sensitive data leakage Cloudflare has tweaked its web application firewall (WAF) to add protections for applications using large language models.\u2026 READ MORE HERE&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[63],"tags":[],"class_list":["post-55495","post","type-post","status-publish","format-standard","hentry","category-the-register"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cloudflare wants to put a firewall in front 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