Persisting Rules with codepoints

[mjcapper]

Hi,
I created a rule for a WebSocket connection, wanting to mock a response to some binary request. Not knowing how to use the hex code to match the When, i pasted the raw special caracters. This worked. But when I closed my Burp Suite and restarted it later, reshaper tried to load the rules, but i got an Error stating
com.fasterxml.jackson.dataformat.yaml.JacksonYAMLParseException: special characters are not allowed at [Source: (StringReader); line: 1, column: 4884] at com.fasterxml.jackson.dataformat.yaml.YAMLParser.nextToken(YAMLParser.java:425) … at synfron.reshaper.burp.core.utils.Serializer.deserialize(Serializer.java:115) at synfron.reshaper.burp.core.settings.Storage.get(Storage.java:18) at synfron.reshaper.burp.core.settings.SettingsManager.loadSettings(SettingsManager.java:60) at burp.BurpExtender.initialize(BurpExtender.java:45) … Caused by: unacceptable code point '�' (0x96) special characters are not allowed in "'reader'", position 455 at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:204) … at com.fasterxml.jackson.dataformat.yaml.YAMLParser.nextToken(YAMLParser.java:419) ... 19 more

Since i cannot use the extension, i cannot remove the rule. And Since i could not find the file this is persisted in, i could also not remove it manually. Can somebody point me to the file, please?

Also Would it be possible to add some Message Type "Hex" to the existing "Text", "Json" etc. so i can copy-paste the hex code? This would make the saving easier.

[Hannah-PortSwigger]

Hi

This looks like an issue with Reshaper, rather than the Montoya API. We'd recommend raising this issue on the author's GitHub.

Could you tell me the OS you are using? It should be possible to physically delete the extension data, but the location of this will depend on your OS.

[mjcapper]

Want to continue this here, or on the burp forum? Thank you!

[Hannah-PortSwigger]

As this is an issue with Reshaper, rather than the Montoya API, we're better off continuing this in the forum 😄