chore: update Nextcloud and Alpine Linux

.github/workflows/build.yml

@@ -3,7 +3,7 @@ name: build
 on:
   workflow_dispatch:
   push:
-    branches: [ version-26 ]
+    branches: [ version-24 ]
   schedule:
     # Build the image regularly (each Friday)
     - cron: '23 04 * * 5'
@@ -34,7 +34,7 @@ jobs:
         if: github.event_name != 'pull_request'
         uses: sigstore/cosign-installer@main
         with:
-          cosign-release: 'v2.2.2'
+          cosign-release: 'v1.13.1'
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
@@ -69,4 +69,4 @@ jobs:
         if: ${{ github.event_name != 'pull_request' }}
         env:
           COSIGN_EXPERIMENTAL: "true"
-        run: cosign sign --yes ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build-and-push.outputs.digest }}
+        run: cosign sign ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build-and-push.outputs.digest }}

Dockerfile

@@ -1,17 +1,17 @@
 # -------------- Build-time variables --------------
-ARG NEXTCLOUD_VERSION=26.0.13
+ARG NEXTCLOUD_VERSION=24.0.12
 ARG PHP_VERSION=8.1
-ARG NGINX_VERSION=1.24
+ARG NGINX_VERSION=1.22
 
 ARG ALPINE_VERSION=3.17
 ARG HARDENED_MALLOC_VERSION=11
-ARG SNUFFLEUPAGUS_VERSION=0.9.0
+ARG SNUFFLEUPAGUS_VERSION=0.8.3
 
 ARG UID=1000
 ARG GID=1000
 
-# nextcloud-26.0.13.tar.bz2
+# nextcloud-24.0.12.tar.bz2
-ARG SHA256_SUM="0a362df7a1233348f99d1853fd7e79f0667b552c145dc45012fab54ac31c79ae"
+ARG SHA256_SUM="2f093bdf7d34faf38d22f38a5e11f3aee32746ff4add3df17c790b9b36390836"
 
 # Nextcloud Security <security@nextcloud.com> (D75899B9A724937A)
 ARG GPG_FINGERPRINT="2880 6A87 8AE4 23A2 8372  792E D758 99B9 A724 937A"
@@ -64,7 +64,6 @@ RUN apk -U upgrade \
         pcntl \
         pdo_mysql \
         pdo_pgsql \
-        sysvsem \
         zip \
         gmp \
  && pecl install smbclient \

README.md

@@ -46,7 +46,7 @@ Don't run random images from random dudes on the Internet. Ideally, you want to
 - **Images are scanned every day** by [Trivy](https://github.com/aquasecurity/trivy) for OS vulnerabilities. Known vulnerabilities will be automatically uploaded to [GitHub Security Lab](https://github.com/Wonderfall/docker-nextcloud/security/code-scanning) for full transparency. This also warns me if I have to take action to fix a vulnerability. 
 - **Latest tag/version is automatically built weekly**, so you should often update your images regardless if you're already using the latest Nextcloud version.
 - **Build production images without cache** (use `docker build --no-cache` for instance) if you want to build your images manually. Latest dependencies will hence be used instead of outdated ones due to a cached layer.
-- **A security module for PHP called [Snuffleupagus](https://github.com/jvoisin/snuffleupagus) is used by default**. This module aims at killing entire bug and security exploit classes (including weak PRNG, file-upload based code execution), thus raising the cost of attacks. For now we're using a configuration file derived from [the default one](https://github.com/jvoisin/snuffleupagus/blob/master/config/default_php8.rules), with some explicit exceptions related to Nextcloud. This configuration file is tested and shouldn't break basic functionality, but it can cause issues in specific and untested use cases: if that happens to you, get logs from either `syslog` or `/nginx/logs/error.log` inside the container, and [open an issue](https://github.com/hoellen/docker-nextcloud/issues). You can also disable the security module altogether by changing the `PHP_HARDENING` environment variable to `false` before recreating the container.
+- **A security module for PHP called [Snuffleupagus](https://github.com/jvoisin/snuffleupagus) is used by default**. This module aims at killing entire bug and security exploit classes (including XXE, weak PRNG, file-upload based code execution), thus raising the cost of attacks. For now we're using a configuration file derived from [the default one](https://github.com/jvoisin/snuffleupagus/blob/master/config/default_php8.rules), with some explicit exceptions related to Nextcloud. This configuration file is tested and shouldn't break basic functionality, but it can cause issues in specific and untested use cases: if that happens to you, get logs from either `syslog` or `/nginx/logs/error.log` inside the container, and [open an issue](https://github.com/hoellen/docker-nextcloud/issues). You can also disable the security module altogether by changing the `PHP_HARDENING` environment variable to `false` before recreating the container.
 - **Images are signed with the GitHub-provided OIDC token in Actions** using the experimental "keyless" signing feature provided by [cosign](https://github.com/sigstore/cosign). You can verify the image signature using `cosign` as well:
 
 ```
@@ -58,8 +58,8 @@ Verifying the signature isn't a requirement, and might not be as seamless as usi
 ## Tags
 
 - `latest` : latest Nextcloud version
-- `x` : latest Nextcloud x.x (e.g. `25`)
+- `x` : latest Nextcloud x.x (e.g. `24`)
-- `x.x.x` : Nextcloud x.x.x (e.g. `25.0.0`)
+- `x.x.x` : Nextcloud x.x.x (e.g. `24.0.0`)
 
 You can always have a glance [here](https://github.com/users/hoellen/packages/container/package/nextcloud).
 Only the **latest stable version** will be maintained by myself.

SECURITY.md

@@ -7,10 +7,9 @@ and will receive the minor version updates and security patches.
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 25. x   | :white_check_mark: |
 | 24. x   | :white_check_mark: |
-| 23. x   | :negative_squared_cross_mark: |
+| 23. x   | :white_check_mark: |
-| 22. x   | :negative_squared_cross_mark: |
+| 22. x   | :white_check_mark: |
 
 Please update to the latest version available. Major migrations are always tested before being pushed.
 

rootfs/etc/nginx/conf.d/default.conf

@@ -21,7 +21,7 @@ server {
         add_header X-Download-Options "noopen" always;
         add_header X-Frame-Options "SAMEORIGIN" always;
         add_header X-Permitted-Cross-Domain-Policies "none" always;
-        add_header X-Robots-Tag "noindex, nofollow" always;
+        add_header X-Robots-Tag "none" always;
         add_header X-XSS-Protection "0" always;
 
         location = /robots.txt {

rootfs/usr/local/etc/php/snuffleupagus/nextcloud-php8.rules

@@ -8,7 +8,7 @@
 sp.harden_random.enable();
 
 # Disabled XXE
-#sp.xxe_protection.enable();
+sp.xxe_protection.enable();
 
 # Global configuration variables
 # sp.global.secret_key("YOU _DO_ NEED TO CHANGE THIS WITH SOME RANDOM CHARACTERS.");
@@ -34,18 +34,16 @@ sp.sloppy_comparison.enable();
 # https://snuffleupagus.readthedocs.io/features.html#protection-against-cross-site-request-forgery
 sp.cookie.name("PHPSESSID").samesite("lax");
 
-# Nextcloud whitelist (tested with Nextcloud 27.0.1)
+# Nextcloud whitelist (tested with Nextcloud 24.0.0)
 sp.disable_function.function("function_exists").param("function").value("proc_open").filename("/nextcloud/3rdparty/symfony/console/Terminal.php").allow();
-sp.disable_function.function("function_exists").param("function").value("exec").filename("/nextcloud/lib/private/legacy/OC_Helper.php").allow();
-sp.disable_function.function("function_exists").param("function").value("exec").filename("/nextcloud/lib/public/Util.php").allow();
 sp.disable_function.function("proc_open").filename("/nextcloud/3rdparty/symfony/console/Terminal.php").allow();
 sp.disable_function.function("ini_set").param("option").value_r("display_errors").filename("/nextcloud/lib/base.php").allow();
 sp.disable_function.function("ini_get").param("option").value("open_basedir").filename("/nextcloud/3rdparty/bantu/ini-get-wrapper/src/IniGetWrapper.php").allow();
+sp.disable_function.function("function_exists").param("function").value("exec").filename("/nextcloud/lib/private/legacy/OC_Helper.php").allow();
 sp.disable_function.function("ini_get").param("option").value_r("suhosin").filename("/nextcloud/3rdparty/bantu/ini-get-wrapper/src/IniGetWrapper.php").allow();
 sp.disable_function.function("ini_get").param("option").value("open_basedir").filename("/nextcloud/apps2/twofactor_webauthn/vendor/symfony/process/ExecutableFinder.php").allow();
 sp.disable_function.function("ini_get").param("option").value("open_basedir").filename("/nextcloud/3rdparty/symfony/process/ExecutableFinder.php").allow();
 sp.disable_function.function("ini_get").param("option").value("allow_url_fopen").filename("/nextcloud/3rdparty/guzzlehttp/guzzle/src/Utils.php").allow();
-sp.disable_function.function("exec").param("command").value("apachectl -M | grep mpm").filename("/nextcloud/apps2/spreed/lib/Settings/Admin/AdminSettings.php").allow();
 
 # Harden the `chmod` function (0777 (oct = 511, 0666 = 438)
 sp.disable_function.function("chmod").param("permissions").value("438").drop();