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ColdFusion updates for CF2023 and CF2021 released Aug 17 2023: resources and thoughts

Adobe has released today an important security update for each of ColdFusion 2023 and 2021. (Since CF2018 is end of life since July, there is no update for that version.) Note that while the technotes for the updates don't mention/link to any Adobe product security bulletin (APSB), this update is indeed an update that provides important security protections, as I discuss further below.

For more resources as well as some additional thoughts on the updates (including what security matter it entails as well as some lessons learned in applying the update--especially if you may update your Java to the JVM released last month), read on.

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Beware you can't install CF updates via the CF Admin after Jul 2023 JVM update

Be aware: if you update ColdFusion to run using the latest JVM updates (released July 18, 2023), you will encounter challenges, which have solutions as I describe here.

You will find that you can no longer INSTALL CF updates via the CF admin, if CF is using this new Java version. And even if the CF update is run from the command line, if using this newer Java version that also will fail. In either case, there is a new JVM argument that solved the problem, as I discuss below.

This is happening in CF2023, 2021, and 2018. (And this may continue to happen with future JVM updates, until Adobe otherwise addresses the problem.)

As an update, you may want to read a more recent post I did on this matter, in October 2023.

As an another update, when I first created this post originally on July 21st, another problem was that you would find that you could no longer use the CF Administrator to download CF updates, if CF was running this new Java version. You would get an error reporting, "Failed Signature verification"--or in some cases you may see only "error failed". But within a couple of weeks, I found that the CF Admin COULD now download updates (including the August 2023 CF update) but the CF update STILL fails to install correctly, as discussed in this post, unless the workaround offered is used.

FWIW, Adobe has also updated the technotes for CF2021 update 10 and CF2023 update 4 with a text box at the top that acknowledges this issue and points to this post for more detail.

In this post, I explain a) what this is all about, then b) how you can fix the problem of INSTALLING the update using the CF Admin, I'll explain how it seems we HAVE to workaround that problem (for now). I also offer a link to a bug report I've filed. I even offer a thought on how this new JVM update may prove over time to affect MORE than just this, and even MORE than just CF (and Lucee) but many java apps. Read on for more.

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A third Priority 1 CF security update has been released, Jul 19 2023

Just days after two P1 CF security updates were released on Jul 11 and 14, Adobe has released yet another on Jul 19.

Yes, this is shocking. Yes, unless there's a good explanation, I can understand how many would feel "someone on the CF team should be flogged". Don't shoot me: I'm just the messenger. I don't work for Adobe.

But I will add that in this post, besides just sharing news about the update (and more than JUST pointing to the update), I also offer an ADDITIONAL "fix" some will want to consider, to go BEYOND what this update addresses. See the discussion on "blocking the _cfclient query string".

Read on for more, where I cover:

  • Finding more info on this update
  • A suggestion on blocking the _cfclient query string
  • News for those doing manual offline installs: this update DOES have a zip
  • As for doing a Java update along with this update
  • CF2018 WAS indeed also updated

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New updates released for Java 8, 11, 17, and 20 as of Jul 18 2023: resources and thoughts

It's that time again: there are new JVM updates released today (Jul 18, 2023) for the current long-term support (LTS) releases of Oracle Java, 8, 11, and 17, as well as the current interim update 20.

TLDR: The new updates are 1.8.0_381 (aka 8u381), 11.0.20, 17.0.8, and 20.0.2 respectively). For more on each of them, including what changed and the security fixes they each contain (including their CVE scores regarding urgency of concerns), see the Oracle resources I list below. Oracle calls them "critical patch updates" (yep, CPU), but they are in fact scheduled quarterly updates, so that "critical" nomenclature may sometimes be a bit overstated. And as is generally the case with these Java updates, most of them have the same changes and fixes across the 4 JVM versions, though not always.

For some folks, that's all they need to hear. For others, read on.

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A second priority 1 CF security update in one week, released Jul 14 2023

Just days after a P1 security update released on Jul 11, Adobe has released yet another on Jul 14. (I don't recall such a short gap between updates before, so yes: it's unusual.)

For more on the update, and some additional thoughts, read on.

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P1 security update released Jul 11 2023 for ColdFusion 2023, 2021, and 2018

Folks using CF2023, 2021, or 2018 will want to know that a Priority 1 security update has been released today affecting all 3 releases, update 1 for CF2023 (its first), update 7 for CF2021, and update 17 for CF2018 (its last). The security bulletin indicates that the updates "resolve critical and important vulnerabilities that could lead to arbitrary code execution and security feature bypass".

Update: 3 days after this update, Adobe released yet another, and then 4 days after that they released yet another, both p1 security updates. While I have posts on each of the two subsequent updates, the one on Jul 14 and then the one on Jul 19, the information below is still important and has details that I do not repeat in the later post.

For more resources as well as some additional thoughts on the updates, read on.

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Presenting "CF Scheduled Tasks: more than you may know, and should" at Hawaii CF Meetup, Jul 28

On Jul 28 at 6pm US Eastern, I'll be offering this talk (online) on the Hawaii ColdFusion Meetup (hosted by John Barrett). For more on the topic and its motivation, read on.

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Restoring the CF Admin logviewer removed in Oct 2022 CF updates, at your own risk

As of the Oct 2022 CF updates (CF2021 update 5 and CF2018 update 15), Adobe has chosen to remove the CF Admin feature to view, search, download, and delete CF logs, due to asserted (but as-yet undocumented) security concerns.

What if you want it back? In this post, I explain what changed, why, and how to get the functionality back--albeit at your own risk. For more, read on.

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How to solve "Failed Signature verification", for downloads of ColdFusion updates--since Oct 2022

If you try to download a CF update using the ColdFusion Administrator AND you get an error, "error occurred while installing the update: Failed Signature Verification", there are both a couple of possible explanations (one of them new), both with fairly simple solutions.

Update Jul 2023: Before considering what I share in this post, note that if you have updated your CF to use the Java update from Jul 2023, the cause of this error may be due to a totally different issue. See my post from July 2023 on that matter.

Update Feb 2023: In mid-February 2023, Adobe did re-sign their jars and placed them on the uploads site so that either the CF Admin update download or anyone performing a manual download after that date WOULD get the newly signed jars, and the problem below then no longer happens. (They are now signed as "SHA256withRSA, 4096-bit key".) I leave the rest here still for those who would want to understand what DID happen and why the update jars that were in place then DID change (slightly) for this reason.

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Finding default/initial CF admin config (neo-*.xml) files, now at cfmlrepo.com

Have you ever wished to obtain a copy of one CF's neo-*.xml files (like neo-cron.xml), for the purpose of setting yours back to its defaults? Folks sometimes need to do that to recover from certain problems.

I've seen the problem raised often enough that when I saw someone raising it this weekend, I decided to solve it by creating a new folder in the cfmlrepo.com site, at least for CF2021 and CF2018 (for now), offering there the initial versions of all the neo-*.xml files for those two editions.

For more information, see what I shared (including more background on the issue, where I got the files, where I put the files, and more) in my reply about all this to the CF Community thread where the user raised the need this weekend.

And for the sake of those who may "just want the files" without any need of explanation or warnings:

I welcome thoughts, feedback, or suggestions.

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