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SedRegex: add test for ReDoS timeout

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From: 81debc45ec
This commit is contained in:
James Lu 2019-10-17 22:13:51 -07:00
parent 1267d6452e
commit 9e0db63b5b
1 changed files with 8 additions and 0 deletions
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8
plugins/SedRegex/test.py
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@ -173,6 +173,14 @@ class SedRegexTestCase(ChannelPluginTestCase):
m = self.getMsg(' ')
self.assertIn('Segmentation fault (core dumped)', str(m))
def testReDoSTimeout(self):
# From https://snyk.io/blog/redos-and-catastrophic-backtracking/
for idx in range(500):
self.feedMsg("ACCCCCCCCCCCCCCCCCCCCCCCCCCCCX")
self.feedMsg(r"s/A(B|C+)+D/this should abort/")
m = self.getMsg(' ', timeout=1)
self.assertIn('timed out', str(m))
# TODO: test ignores
# vim:set shiftwidth=4 tabstop=4 expandtab textwidth=79: