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Error parsing Regex strings in newest v1.2.6

See original GitHub issue

Up to now I was working with version 1.2.5, which worked fine. The newest master produces errors with many of my regex YARA strings.

Traceback (most recent call last):
  File "mjolnir.py", line 166, in readFiles
    rulesList = p.parse_string(fileData)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/plyara-1.2.6-py3.6.egg/plyara.py", line 210, in parse_string
    yacc.parse(input_string)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/ply-3.11-py3.6.egg/ply/yacc.py", line 333, in parse
    return self.parseopt_notrack(input, lexer, debug, tracking, tokenfunc)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/ply-3.11-py3.6.egg/ply/yacc.py", line 1201, in parseopt_notrack
    tok = call_errorfunc(self.errorfunc, errtoken, self)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/ply-3.11-py3.6.egg/ply/yacc.py", line 192, in call_errorfunc
    r = errorfunc(token)
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/plyara-1.2.6-py3.6.egg/plyara.py", line 1087, in p_error
    raise TypeError(u'Unknown text {} for token of type {} on line {}'.format(p.value, p.type, p.lineno))
TypeError: Unknown text [ for token of type LBRACK on line 78

The parser fails on regular expression strings like this

      $d = /\x00https?:\/\/[^\x00]{4,500}\x00\x00\x00/

I guess that this commit introduced the errors: https://github.com/plyara/plyara/commit/0c4e814e139cac27c9cf0f7945b534c99c960c47

Issue Analytics

State:
Created 5 years ago
Comments:9 (9 by maintainers)

Top GitHub Comments

1reaction

Neo23x0commented, Oct 16, 2018

Fixed in https://github.com/plyara/plyara/commit/0e1847dafee6a6108711e93e9e15ffec48c3eedb

1reaction

rshippcommented, Oct 15, 2018

Pushed to PyPI as v1.2.7.

@Neo23x0 can you confirm this and #24 are fixed with v1.2.7?

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