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CVE-2011-4597

CVE-kwetsbaarheidsdetails - eXtreme Datacenter Security Operations

Gepubliceerd 2011-12-15 02:00:00
Laatst bijgewerkt 2024-08-07 00:09:19
Toegewezen door redhat
CVSS-score geen score
Status PUBLISHED

Beschrijving

The SIP over UDP implementation in Asterisk Open Source 1.4.x before 1.4.43, 1.6.x before 1.6.2.21, and 1.8.x before 1.8.7.2 uses different port numbers for responses to invalid requests depending on whether a SIP username exists, which allows remote attackers to enumerate usernames via a series of requests.