Cisco WebEx Meetings Server before 1.1 uses meeting IDs with insufficient entropy, which makes it easier for remote attackers to bypass authentication and join arbitrary meetings without a password, aka Bug ID CSCuc79643.
The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.
Link | Tags |
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https://www.cisco.com/c/en/us/td/docs/collaboration/CWMS/1_1/b_Release_Notes.html | release notes vendor advisory |