Log4j was a fun one to watch unfold everywhere when things went haywire
this post was submitted on 22 Jun 2023
319 points (99.1% liked)
Programming
17483 readers
199 users here now
Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!
Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.
Hope you enjoy the instance!
Rules
Rules
- Follow the programming.dev instance rules
- Keep content related to programming in some way
- If you're posting long videos try to add in some form of tldr for those who don't want to watch videos
Wormhole
Follow the wormhole through a path of communities [email protected]
founded 1 year ago
MODERATORS
The neat thing about the log4j thing was even a cursory explanation of the vulnerability made anyone with a passing familiarity with security say, "Why the fuck would that even be a feature?!"
What was it?
Basically it involved parsing JNDI stuff which involved grabbing remote code (but that was a niche feature of JNDI in the Dev's defense). Basically, you may think it is just something like variable substitution but can involve much crazier stuff.
Edit: and for more context, JNDI is typically a thing for getting a database connection stored on the application server. The idea being you just ask for "customer database" and don't have to define the connection in the code. The server has it defined elsewhere. So in each environment it works the same. Basically glorified and standardized config file type of thing.
load more comments
(1 replies)
That was not a fun week to be a developer.
As a non-java company developer at the time, I think our biggest challenge was explaining to everyone that Log4j didn't affect us. It took a non-zero amount of effort because a lot of customers panicked. To be fair, it was also an industry where confidentiality is important.
load more comments
(1 replies)
load more comments
(3 replies)
load more comments
(3 replies)
Werner Koch, the guy who created, and who has maintained for 25 years now, pretty much all by himself, GnuPG, the modern email encryption replacement for PGP.
Just the other day, I realized I actually live just a few kms away from the guy, here in Germany ... very tempted to reach out to him someday and actually buy him an actual coffee.
load more comments
(1 replies)
Sci-Hub anyone?
Alexandra Elbakyan manages this truly awesome source of scientific papers completely on her own. She got sued twice and lost, had to change the URL multiple times due to takedowns and only gets along by donations.
It is a crime to humanity to lock knowledge behind a huge paywall. She does God's work.
And it's not like the actual scientists/academics support knowledge being locked away either, or profit from it.
load more comments
(1 replies)
She's the best thing that's happened to the s scientific publishing field. I'm no longer a student but I still enjoy reading scientific papers and I'll be damned if I have to pay $20 per article (which doesn't go to the authors) since I no longer have access to a library that maintains relationships with these big publishers.
Had GPT summarize what happened.
The "left pad" incident refers to a controversy that arose in 2016 when a developer named Azer Koçulu removed his JavaScript package called "left-pad" from the NPM (Node Package Manager) registry. This caused a ripple effect, breaking numerous projects that relied on this package and highlighting the potential risks of relying on external dependencies. The incident sparked a debate about the stability and trustworthiness of the open-source ecosystem and led to discussions about best practices for managing dependencies in software development.
This is the one I came to post about. The fact there's a library for this is so stupid to me.
I feel like it demonstrates how npm and modules have probably to some degree gotten out of hand.
This famously broke builds at Facebook.
load more comments
(4 replies)
cURL was one of these for a while (according to my limited understanding)
It was made in the 90s and it didn't get commercial support until a few years ago.
Public NTP time servers have occasionally been that piece of infrastructure.
NTP is used for synchronizing computer clocks, ultimately using highly-accurate time sources such as atomic clocks. The most authoritative public time servers tend to be run by research universities, national labs, and so on.
Multiple home router vendors have sold devices configured to poll university NTP servers vastly excessively; effectively running a denial-of-service attack against public infrastructure. In a few cases, public time servers have closed down because of abuse by misconfigured consumer devices.
TzData is basically maintained by 2 guys. Pretty much every computer, phone and language relies on this database for timezone information.
A developer maintained a NodeJS package called left-pad that would add leading whitespace to strings. He unpublished the package and broke basically the entire Node ecosystem until the repo owner forcibly republished it against the author's wishes.
The core-js library is used by 1000s of top websites and is maintained by one guy
https://github.com/zloirock/core-js
He also went to prison
It's honestly a fascinating read. We count so much on these kinds of people to keep our way of life intact, but when they ask for a little help in their own life, they get spat on.
It's really, really sad that this sort of stuff doesn't get picked up and funded for the greater good. Stuff like the NLnet Foundation exists, which has helped fund some pretty major projects (including the development of Lemmy), but something this critical I feel should be consistently funded by even larger entities in order to keep things working right.
That feels it went seriously bad
load more comments
(1 replies)
Not a package but FileZilla is developed by Tim Kosse for over 20 years. I know that there are a lot of other FTP-Clients but FileZilla is my favorite. Easy to use and very very stable. There is a pro version sure, but most of the time the regular one does the job. My company throws thousands of dollars a month at Adobe, Microsoft and others. But they would never even think about giving anything to Tim Kosse and others, even though I've probably saved days of work with tools like this.
My company's anti-malware started triggering on filezilla's installer a few years ago because they started packaging apparently sketchy ads in it. Dunno if that's still the case or not. I ended up switching to WinSCP instead. (Which I believe is actually another example of just one or two guys running that show too.)
I didn't even know about core-js until the dev complained about all the sites which use it. https://github.com/zloirock/core-js/blob/master/docs/2023-02-14-so-whats-next.md
OpenSSL / Heartbleed was the event when this comic came out IIRC.
Basically every Windows sysadmin is indebted to Mark Russinovich and SysInternals. Fortunetly, PowerToys has come a long way because I'm pretty sure sysinternals haven't been updated since Windows XP.
Mark Russinovich now works for Microsoft and they own Sysinternals. Also the tools get updated quite regularly.
"Mark works for MS" is a massive understatement. He's CTO of Azure now.
And speaking of Sysinternals, arguably the most exciting update was when ProcessExplorer got a dark mode late last year :)
load more comments
(1 replies)
In the same kind of vein as imagemagick, Dave Coffin's dcraw tool at least partly underlies almost every non-proprietary RAW image decoder, and some of the commercial ones (if they don't use code, they use constant matrices and such).
He's not a sole maintainer to any of his major projects anymore, but honorable mention to Fabrice Bellard who initiated both ffmpeg and qemu among other notable activities.
IIRC the Expat XML parser that's embedded everywhere was basically on spare-time maintenance by Clark Cooper and Fred Drake for a couple decades, but I think they have a little more resources now.
SQLite is a BDFL situation more than single-maintainer, but D. Richard Hipp still has his hands on everything, and there are only a relatively small number of folks with commit access.
Node frameworks are famous for this purely because of a lack of standard library. I feel like most languages have a standard library that balance being generic but still providing utilities of common used stuff. So a company that doesn’t want to rely on a random guy’s library can build their own with only the features they want. But with Node, any complicated feature is using a tree of hundreds of random packages that you have no idea who created them.
load more comments
(8 replies)
Who maintains ffmpeg?
Looks like there has at least been a small team working on ffmpeg for some time. https://en.m.wikipedia.org/wiki/FFmpeg#History
load more comments
(1 replies)
Look up a machine called Therac-25. great example of this. Terrifying.
That's terrifying!
I'll save the next guy a search https://en.wikipedia.org/wiki/Therac-25
Tl;dr:
The Therac-25, a radiation therapy machine produced by Atomic Energy of Canada Limited (AECL), was implicated in six accidents between 1985 and 1987 where patients received massive radiation overdoses due to software errors.
Edit: maybe it was core js. I don't remember the name exactly.
Standard JS. It's a library maintained by one guy in Russia who went to jail for some car accident (I don't have the full context). He needed money and had trouble getting it. Then the Ukraine invasion happened and that only made it more difficult for him to get money. Also he was harassed by less technical people seeing his code on websites thinking it was malicious.
It's really a sad story to me.
load more comments
(1 replies)
Would you like to hear an OpenSSL joke?
It's 64k letters long and you can repeat it back to me when I'm done.
It's "A".
load more comments
(3 replies)
As a game developer ImGui comes to mind.
The Network Time Protocol was certainly one of these for a long time, although I think it gets reasonable support now.
Having the clock read the same on all the computers in the world makes so many thing possible.
load more comments
(2 replies)
Salvatore Sanfilippo - creator of Redis.
Well, he actually received many appreciations from the community. But it's worth knowing IMO.
RenderDoc is made by one person. It's used by every graphics programmer. It's free, open source, faster + better than anything else. I love it.
view more: next ›