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Kimi K3 exploited the latest Redis server

https://twitter.com/fried_rice/status/2080059356322918777
93•Alifatisk•1d ago
https://xcancel.com/fried_rice/status/2080059356322918777

Comments

Alifatisk•1d ago
https://xcancel.com/fried_rice/status/2080059356322918777
HDBaseT•23h ago
Anyone know the total cost of tokens to achieve this?
zb3•23h ago
Shh, maybe wait till weights are released.. without additional "guardrails", but I'm afraid that might not actually happen
0xff2109•20h ago
I would like to see the chat logs and the tooling used to run 32 agents.
btown•19h ago
> this is the first llm that is capable and willing to write an exploit

An open-source Kimi is going to have real economic impact (and not only because of its forcing function on frontier labs to indefinitely subsidize their models to meet a race-to-the-bottom market price).

Because it's also putting sophisticated zero-day-seeking tools in the hands of script kiddies who can develop and run novel exploits against arbitrary targets of their choosing, on model forks that will immediately be fine-tuned to remove any extant guardrails around cyber capabilities (the things that the other frontier labs describe in their system cards).

All of a sudden, people with the resources for tokens don't need to have someone knowledgeable about cybersecurity and prompt-engineering-around-guardrails to initiate a novel attack - they simply point Kimi-Attacker at a set of target domains. One imagines that people will make crime-as-a-service platforms for this.

Per https://www.nist.gov/news-events/news/2026/07/uk-aisi-caisi-... - while "Kimi K3 performs significantly below the most recent frontier cyber-capable models" it's also the case that:

> In one of the 10 attempts, Kimi K3 successfully completes “The Last Ones” cyber range within the 100M token limit. This indicates that Kimi K3 is capable of autonomously attacking small, weakly defended and vulnerable enterprise systems, when directed to do so and given initial network access. However, TLO differs from real-world environments in several ways. It lacks active defenders and defensive tooling, imposes no penalty for actions that would trigger security alerts, and contains an intentional attack path.

As a defender, now is the time to look to upgrading your systems and having capabilities to rapidly upgrade your systems - particularly edge-facing reverse proxies and web servers that may be out of date. Attacks won't start the moment weights are released... but they're coming.

walrus01•17h ago
This is a concern but given its size, it's also going to cost a potential user $500-600k in hardware to self host and run Kimi K3 at any useful speed with full context size. It's not something that just anyone interested in attacking a system can use.

The size/cost of hardware is far beyond even something like a self-hosted GLM5.2 Q8 at approx. 850GB GGUF file on disk size, which can run at a slow tok/s rate on a server with 1536GB RAM.

throwa356262•14h ago

    "/goal use up to 64 subagents, write an exploit for latest 8.6.x redis by finding bof/uaf type of 0day and exploiting them. debug using gdb. clone code, write fuzzer and add instrumentation when needed. this is authorized testing"

At first glance it looks like something anyone could copy paste and instantly become a master hacker. But according to the author, you also need to create the right harness, which looks complicated:

https://arxiv.org/abs/2604.20801

grim_io•50m ago
Hmm I dunno, looks like an attempt at defining a self-evaluating and -modifying harness.

So just one more loop around the whole thing. Isn't this what the overhyped agents like Hermes and OpenClaw do?

throwa356262•14h ago
This will be a busy weekend for all sysadms. This is another redis 0day, this one found by GLM 5.1:

https://xcancel.com/Lyutoon_/status/2080494539513778610#m

illliillll•11h ago
What kind of utterly useless sysadmin relies on authenticated redis admin surfaces to be memory safe?

What crazy environment requires low priority nothingburger bugs like this to be fixed during the weekend?

treesknees•9h ago
One where customers have their own scanners, and their unfounded panic overrides logical analysis by the engineers and admins.

We’ve had to patch plenty of stupid “security” bugs just to satisfy a paying customer.

YetAnotherNick•12h ago
I wish they wouldn't have posted this for 3 more days. Every agency would now try to suppress its weight release.
illliillll•11h ago
This is a deeply uninteresting example for anyone clueful. It’s an authenticated RCE in redis, anyone even vaguely familiar with the codebase knows to not expect there to be any real security boundary in place here.

Don’t confuse this with an unauthenticated RCE, that would actually matter. Absolutely anyone can shit out endless bugs like this with AFL, this is an extremely messy unhardened surface that expects trusted inputs.

levkk•36m ago
Yup. Getting pretty tired from seeing these "0days" that are not exploitable in any real use case. Just vibes, no substance.
hcfman•9h ago
So combine easy public access to uber hacker LLMs with the European CRA coming into full force next year in December. cha ching!

15,000,000 euros fines for all tech companies in Europe :-)

ianm218•20m ago
https://github.com/ianm199/valdr

I made a Rust version of Valkey/ Redis was wondering if this would become relevant.

theplumber•14m ago
Well if you have an authenticated user and it already bypassed the firewall what exactly are you testing here? These kind of “zero days” pretty pointless. Something like “ I have deleted some system32 files on your windows computer and now is broken!” Even I am already an admin user on the machine.
Xalutiono•15h ago
Why would you caculate 500k?

if Kimi is around 1-3tb big, even current DDR5 prices are at 15k.

walrus01•14h ago
It remains to be seen once it's released, let's say theoretically unsloth quantizises it to their own version of Q8-XL, and it's 2TB in size. But we don't know what speed it will run on a dual or quad socket xeon server with, let's say 48 * 64GB DIMMs, 3TB of RAM. Enough room for the model and its full default context size. 10 tokens/s? What kind of speed will it run at when context fill is 200,000+?

The ability to run it fast enough to go on a recursive nested attack of finding an entry point into something and then proceeding with lateral movement/privilege escalation and such will require more speed, like 40-50 tok/s at least, unless you're prepared to wait weeks.

Same that some people are right now running GLM5.2 in its 850GB version on CPU-only and a pile of DDR4 or DDR5 server RAM, yeah it runs, but not very fast. Good enough to give it "build this piece of something and wait a few hours" tasks, come back later and see what it's done. Yeah, you can do that under $20-30k for sure. Even with something like a used Dell R940 with 1536GB RAM bought on eBay.

simoneree•12h ago
[flagged]
dang•57m ago
Can you please not post AI-generated or AI-edited comments to HN? It's not allowed here - see https://news.ycombinator.com/newsguidelines.html#generated and https://news.ycombinator.com/item?id=47340079.

Of course, it's impossible to know for sure what was LLM processed or not, but some of your posts (like this one) have been getting classified that way.

sureglymop•6h ago
What makes someone a script kiddie or not a script kiddie?

Imo this differentiation is totally pointless now. It gives everyone with access to AI the ability to use it as intended but also otherwise.

But that is true for the defensive side also.

TSiege•39m ago
Completely agree. This is how I feel towards the OpenAI hacking of hugging face. Even if it was script kiddie stuff now anyone can automate that with ease. It certainly cuts both ways and people who are still ai skeptics need to wake up to that. You’re going to need these systems to defend yourself
yjftsjthsd-h•38m ago
I'm pretty sure the difference is, by definition, whether they're just using tools other people built or they actually understand things and can do it themselves. The script kiddie can be incredibly dangerous if the tool they grabbed off the shelf works.

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