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.
Metrics
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
AV:N/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
---|---|
Digium |
|
Configuration 1 [-]
|
Configuration 2 [-]
|
Configuration 3 [-]
|
No data.
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2011-12-15T02:00:00
Updated: 2024-08-07T00:09:19.309Z
Reserved: 2011-11-29T00:00:00
Link: CVE-2011-4597
Vulnrichment
No data.
NVD
Status : Modified
Published: 2011-12-15T03:57:34.310
Modified: 2024-11-21T01:32:37.697
Link: CVE-2011-4597
Redhat
No data.