Tell HN: Camelgate NPM Outage (Cloudflare)
122 pointsby bavarianbob10 months ago12 comments
  • tom_usher10 months ago
    Seems to be a change in Cloudflare's managed WAF ruleset - any site using that will have URLs containing 'camel' blocked due to the 'Apache Camel - Remote Code Execution - CVE:CVE-2025-29891' (a9ec9cf625ff42769298671d1bbcd247) rule.

    That rule can be overridden if you're having this issue on your own site.

    • internetter10 months ago
      > any site using that will have URLs containing 'camel' blocked

      What engineer at cloudflare thought this was a good resolution?

      • Raed66710 months ago
        I doubt the system is that simple. No one wrote a rule saying `if url.contains("camel") then block()` it's probably an unintended side-effect
        • keithwhor10 months ago
          If this is a bet, I'll happily take the other side and give you 4:1 on it.
        • ycombinatrix10 months ago
          Akamai has been doing precisely that for years & years...
          • 10 months ago
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          • benoau10 months ago
            I think you can include advertising/privacy block lists in that vein too, although that allows for the users to locally-correct any issues.
        • isbvhodnvemrwvn10 months ago
          Judging by previous outages it was probably a poorly tested overcomplicated regex which matched to much.
      • TacticalCoder10 months ago
        [dead]
    • oncallthrow10 months ago
      WAFs are so shit
      • ronsor10 months ago
        WAFs are literally "a pile of regexes can secure my insecure software"
        • mschuster9110 months ago
          To be fair to WAFs, most are more than just a pile of regexes. Things like detecting bot traffic - be it spammers or AI scrapers - are valuable (ESPECIALLY the AI scraper detection, because unlike search engines these things have zero context recognition or respect for robots.txt and will just happily go on and ingest very heavy endpoints), and the large CDN/WAF providers can do it even better because they can spot shit like automated port scanners, Metasploit or similar skiddie tooling across all the services that use them.

          Honestly what I'd _love_ to see is AWS, GCE, Azure, Fastly, Cloudflare and Akamai band together and share information about such bad actors, compile evidence lists and file abuse reports against their ISP - or in case the ISP is a "bulletproof hoster" or certain enemy states, initiate enforcement actors like governments to get these bad ISPs disconnected from the Internet.

          • randunel10 months ago
            Why would scrapes get blocked, is scrapping illegal?
            • eitland10 months ago
              I don't know if it is, but I also don't think we are required to let dumb bots repeatedly assault or web sites if we can find a technical way to get around it.
            • Xylakant10 months ago
              It's very often not, but it's still the website owners property and if they choose so, they can show misbehaving guests the door and kindly ask to remain on the other side (aka block them). Large scale scraping puts substantial burden on web properties. I was paged the other night because someone decided it would be a great idea to throw 200 000rq/s for a few minutes at some publicly available volunteer run service.
        • cluckindan10 months ago
          They do mitigate known vulnerabilities.
          • rcxdude10 months ago
            They may mitigate known proofs of concept of vulnerabilities, and require a small amount of creativity to work around. At the cost of randomly breaking things.
            • cluckindan10 months ago
              That creativity takes time. WAFs are the first line of defence, buying some time for fixing the actual vulnerabilities.
      • UltraSane10 months ago
        But are they less shit than the shitty software they filter traffic for?
  • pvg10 months ago
    This is not CF WAF's first rodeo https://news.ycombinator.com/item?id=20421538

    Cementing its track record as a product that mostly doesn't do anything except for occasionally break the internet here and there to keep things fun and interesting.

    • lynnesbian10 months ago
      > a product that mostly doesn't do anything except for occasionally break the internet

      I wouldn't say that. The postmortem you referred to links to another CloudFlare blog post - one about a pretty serious RCE vuln in Microsoft SharePoint that was blocked by their WAF: https://blog.cloudflare.com/stopping-cve-2019-0604/

      • pvg10 months ago
        I mean, it's hardly surprising CloudFlare will tell you this is a useful product. But it is to securing a web application what regex is to parsing HTML.
        • jiggawatts10 months ago
          Sadly I work with web developers that all assume they don’t need to bother too much with security “because we have a WAF”.
    • AdamJacobMuller10 months ago
      I'm not sure why "WAF has false positives" makes it useless, nor would I say this is anywhere near the scale of "breaking the internet" and I'm not even fan of the concept of WAFs in general.
      • pvg10 months ago
        The last one took out a lot more stuff than this one but the argument is the same - this product is a checkmark thing and when it's not fulfilling its checkmark purpose, it causes outages. Still an amusing bi-modality! I suppose it shares it with DNSSEC.
        • misiek0810 months ago
          Basically CF default WAF settings saved more small and medium companies I can even count to. I’m not CF fan, but WAFs (with rate limiting) do help. Sad that one or two incidents for that complicated and big services make people post such comments, but cmon - it doesn’t have AI in it's name so sheeps have to cry, right?
    • calvinmorrison10 months ago
      we've used it to rescue some vintage appliances that are basically unsecurable.
  • nwalters51210 months ago
    The npm folks have officially acknowledged an incident now: https://status.npmjs.org/incidents/hdtkrsqp134s
  • miyuru10 months ago
    Outsourcing WAF is a double-edged sword.

    I would have thought a large company like GitHub or Microsoft can have their own WAF team for their apps.

    (NPM is owned by GitHub, and GitHub is owned by Microsoft)

  • klysm10 months ago
    This is what you get when you buy security as an add-on product
    • troyvit10 months ago
      Some orgs can't afford not to.
  • mplanchard10 months ago
    Glad you posted something, thought I was going nuts
  • drusepth10 months ago
    Is this also why unpkg has been up and down all morning?
    • ycombinatrix10 months ago
      unpkg barely works even when there's no incident
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  • time4tea10 months ago
    Scunthorpe problem
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