Commit Graph

100 Commits

Author SHA1 Message Date
Erik Krogh Kristensen
77967c3e63 undo unsound optimization in js/ReDoS 2021-01-06 10:36:21 +01:00
Erik Krogh Kristensen
b42aac17d5 add more tests for js/ReDoS 2021-01-06 10:34:06 +01:00
Erik Krogh Kristensen
ce8cc2368b improve precision of intersect 2021-01-04 11:55:51 +01:00
Erik Krogh Kristensen
cbad705029 general performance improvements in the ReDoS utility library 2020-12-21 11:49:21 +01:00
Erik Krogh Kristensen
05569187b4 improve performance of suffix checking 2020-12-18 17:21:15 +01:00
Erik Krogh Kristensen
6369374224 implement new algorithm for detecting superlinear backtracking in regular expressions 2020-12-18 17:21:15 +01:00
Erik Krogh Kristensen
7ce91e9146 introduce cannonical representatives of RegExpTerms to decrease the number of InputSymbols in the NFA 2020-12-18 17:21:11 +01:00
Erik Krogh Kristensen
b2116dc5b4 add more tests for polynomial/exponential redos 2020-12-18 13:19:17 +01:00
Erik Krogh Kristensen
cc98c41dd6 revert marking repetitions with possibly empty body as forks 2020-12-03 20:08:07 +01:00
Erik Krogh Kristensen
33b2701551 refine isFork to remove false positive when a state has epsilon transition to itself 2020-11-29 21:42:50 +01:00
Erik Krogh Kristensen
d7b22e3b1b update expected output for PolynomialBackTracking 2020-11-27 20:15:27 +01:00
Erik Krogh Kristensen
729073fb43 detect ReDoS when the choices are "match some string" or "match Epsilon" 2020-11-27 20:15:23 +01:00
Erik Krogh Kristensen
e177d46c0a add two test cases that demonstrate the limits of the suffix construction 2020-11-27 13:45:34 +01:00
Erik Krogh Kristensen
9468a6e8dc update expected output 2020-11-26 12:32:55 +01:00
Erik Krogh Kristensen
1b3c3ef4cb adjust comments in ReDoS test case 2020-11-26 10:31:44 +01:00
Erik Krogh Kristensen
b418cb5fe0 add test case where the successor of the repeating term matches epsilon 2020-11-25 13:59:10 +01:00
Erik Krogh Kristensen
c5f5206174 update expected output 2020-11-25 13:57:20 +01:00
Erik Krogh Kristensen
a8944c8953 model accept states more accurately by adding an AcceptAny state, modelling $, and checking the existence of rejecting suffixes 2020-11-25 13:57:20 +01:00
Erik Krogh Kristensen
d9ebb7b20e escape tabs 2020-11-25 13:57:20 +01:00
Erik Krogh Kristensen
bcb2f2768d search for a prefix to the state that causes exponential backtracking 2020-11-25 13:57:20 +01:00
Erik Krogh Kristensen
c4153a617e remove duplicated test cases from ReDoS, and adjust variables names to match test output 2020-11-18 14:49:09 +01:00
Erik Krogh Kristensen
8270bf5bb9 make the character search skip unencodable characters 2020-11-18 11:55:49 +01:00
Erik Krogh Kristensen
55f2f86a26 limit the search of state-pairs to the ones that are reachable within the given length 2020-11-18 09:23:35 +01:00
Erik Krogh Kristensen
c4d7533701 Merge branch 'main' into moreReDoS 2020-11-17 17:34:49 +01:00
Erik Krogh Kristensen
97acf1fd87 fix FP related to inverted character classes choosing a char that was not matched by the char class 2020-11-17 17:34:43 +01:00
Erik Krogh Kristensen
e01d4b104e update expected output 2020-11-10 23:42:38 +01:00
Erik Krogh Kristensen
3ef5d89e39 update expected output 2020-11-08 23:27:38 +01:00
Erik Krogh Kristensen
17a687b344 testing many possible intersections, instead of a single intersection 2020-11-08 23:24:36 +01:00
Erik Krogh Kristensen
34fd0d89f5 finding the minimum that is not an FP - instead of finding the minimum and then checking if it was an FP. And detecting more FPs by finding when a witness pass through the accept state 2020-11-08 23:24:27 +01:00
Erik Krogh Kristensen
ac514b1739 remove false positives where the analysis would wrongly conclude that the accept state could not be reached 2020-11-08 23:24:03 +01:00
Erik Krogh Kristensen
a5e75f53ff add support for escape char classes inside char classes 2020-11-08 23:22:49 +01:00
Erik Krogh Kristensen
0063cb140c add support for \W, \S, \D 2020-11-08 23:16:56 +01:00
Erik Krogh Kristensen
2dd8b6ffef support \f and \v in the \s class 2020-11-08 23:16:56 +01:00
Erik Krogh Kristensen
68fe03060d support \d \s and \w in ReDoS.ql 2020-11-08 23:16:56 +01:00
Erik Krogh Kristensen
fa54ad1a5e refactor character class implementation in ReDoS.ql - preparing support for RegExpCharacterClassEscape 2020-11-08 23:16:55 +01:00
Erik Krogh Kristensen
a09ffd5cda expand getAOverlapBetweenCharacterClasses to support overlap between more char classes 2020-11-08 23:16:37 +01:00
Erik Krogh Kristensen
82252c0f1c detect redos between charclass and inverted charclass 2020-11-08 23:16:34 +01:00
Erik Krogh Kristensen
16473fc2a4 matching a inverted char class with a char 2020-11-06 10:18:57 +01:00
Erik Krogh Kristensen
804aaf36f0 support inverted char class and dot 2020-11-06 10:18:57 +01:00
Erik Krogh Kristensen
64d680e2d3 support that an inverted char class can intersect with itself 2020-11-06 10:18:57 +01:00
Erik Krogh Kristensen
321cf09bd8 add redos support for the simplest possible inverted char class 2020-11-06 10:18:57 +01:00
Erik Krogh Kristensen
e16fa0668a update expected output 2020-11-04 18:24:31 +01:00
Erik Krogh Kristensen
b02004430c prune results that end with newline, where the input cannot contain newlines 2020-11-03 14:48:39 +01:00
Erik Krogh Kristensen
ebc4856456 detect more expensive regexps in js/polynomial-redos 2020-10-30 09:52:13 +01:00
Erik Krogh Kristensen
b09015380a add support for String.prototype.replaceAll 2020-09-21 10:50:04 +02:00
Esben Sparre Andreasen
1b73cee692 JS: add js/exploitable-polynomial-redos 2020-02-27 08:42:43 +01:00
Asger F
e0bdc777b9 JS: Make ReDoS check string-based regexes 2019-11-15 09:27:19 +00:00
Asger F
97e5da1046 JS: Update ReDoS query 2019-11-15 09:27:19 +00:00
Max Schaefer
3e92d0ffb5 JavaScript: Remove redundant --experimental extractor options. 2019-11-05 15:59:24 +00:00
Pavel Avgustinov
b55526aa58 QL code and tests for C#/C++/JavaScript. 2018-08-02 17:53:23 +01:00