Mercurial > p > roundup > code
annotate website/issues/extensions/timestamp.py @ 8356:63390dcfcfe9
bug: fix template use of structure with untrusted data
Looks like an xSS bug with an early version of the template that was
fixed in the code but never in the deployed tracker. It has been a
while since this particular construct has been in the classic template
which is the base for the tracker.
This has been fixed on the deployed tracker as well.
reported by 4bug of ChaMd5 Security Team H1 Group
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Tue, 08 Jul 2025 10:23:09 -0400 |
| parents | 35ea9b1efc14 |
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| rev | line source |
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1 import time, struct, base64 |
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2 from roundup.cgi.actions import RegisterAction |
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3 from roundup.cgi.exceptions import * |
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4 |
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5 def timestamp(): |
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6 return base64.encodestring(struct.pack("i", time.time())).strip() |
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7 |
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8 def unpack_timestamp(s): |
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9 return struct.unpack("i",base64.decodestring(s))[0] |
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10 |
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11 class Timestamped: |
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12 def check(self): |
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13 try: |
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14 created = unpack_timestamp(self.form['opaque'].value) |
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15 except KeyError: |
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Python 3 preparation: "raise" syntax.
Joseph Myers <jsm@polyomino.org.uk>
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16 raise FormError("somebody tampered with the form") |
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17 if time.time() - created < 4: |
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Python 3 preparation: "raise" syntax.
Joseph Myers <jsm@polyomino.org.uk>
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18 raise FormError("responding to the form too quickly") |
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19 return True |
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20 |
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21 class TimestampedRegister(Timestamped, RegisterAction): |
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22 def permission(self): |
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23 self.check() |
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24 RegisterAction.permission(self) |
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25 |
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26 def init(instance): |
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27 instance.registerUtil('timestamp', timestamp) |
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28 instance.registerAction('register', TimestampedRegister) |