https://github.com/mrackwitz/jeroboam
Check all your apps on macOS for vulnerable Sparkle updaters
https://github.com/mrackwitz/jeroboam
macos security security-scanner security-tools security-vulnerability
Last synced: 9 months ago
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Check all your apps on macOS for vulnerable Sparkle updaters
- Host: GitHub
- URL: https://github.com/mrackwitz/jeroboam
- Owner: mrackwitz
- License: mit
- Created: 2016-02-13T15:24:10.000Z (over 10 years ago)
- Default Branch: master
- Last Pushed: 2019-10-03T16:43:23.000Z (over 6 years ago)
- Last Synced: 2025-01-06T15:18:03.266Z (over 1 year ago)
- Topics: macos, security, security-scanner, security-tools, security-vulnerability
- Language: Ruby
- Homepage:
- Size: 300 KB
- Stars: 38
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
🍾 Jeroboam
============
#### Keep's it sparkling for longer
This tool checks all applications and preference panes in the typical OS X
installation paths whether they contain an outdated [MITM-vulnerable][1]
version of Sparkle.
If that's the case, it checks some further heuristics to try to determine
whether the application's updater is actually vulnerable.
In the end, it uses this information to classify the risk, where the
classifications may take the following values:
* *IMMINENT DANGER*: the heuristics indicate that it can't be assured, that
using the updater won't compromise the system.
In the best case, the app publisher provides updated binaries with a patched
version of Sparkle, which isn't vulnerable or avoids using unencrypted
HTTP connections for retrieving the AppCast, as strongly encouraged by
Sparkle's documentation.
Alternative countermeasures may range from disabling auto-updates and not
using the updater anymore, over restricting the app's network functionalities
to putting the app under quarantine.
* *UNKNOWN*: the app was compiled against an older SDK, so that [ATS][2] is not
active or there are exclusions from ATS, while the feed URL for the AppCast
is not declared in the Info.plist, so it has to be programmatically provided,
which can't be determined by statical analysis. Nevertheless the tool
inspects all string literals in the executable to find all HTTP URLs, which
might include the feed URL. This strategy has limits and can't catch URLs,
which weren't fully hardcoded as strings or obfuscated in another way. The
found URLs are printed for further investigation through the user to allow a
better risk estimation. If an insecure URL serving an AppCast can be found,
it is likely that the app is vulnerable, otherwise it can't be excluded.
* *BROKEN UPDATER*: the app doesn't have exclusions from ATS while the feed
URL is insecure and it was compiled against OS X 10.11 SDK, which causes that
ATS is enabled and insecure HTTP requests are blocked by default. That means
the updater won't be able to download any updates.
## Usage
```
curl -sSLO https://raw.githubusercontent.com/mrackwitz/Jeroboam/master/jeroboam
less jeroboam
ruby jeroboam
```
While you could theoretically just pipe the raw contents of the executable into
your Ruby interpreter as seen below, this is not a fail-proof concept.
So the recommended way would be as seen above: download the script and run it
not before you made sure yourself that everything is alright.
```shell
> curl -sSL https://raw.githubusercontent.com/mrackwitz/jeroboam/master/jeroboam | ruby
```
## Exemplary Output
## License
>Copyright (c) 2016 Marius Rackwitz
>
>Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
>
>The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
>
>THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
[1]: https://sparkle-project.org/documentation/security/
[2]: https://developer.apple.com/library/prerelease/mac/technotes/App-Transport-Security-Technote/