Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.3, 1.6.0.x before 1.6.0.17, and 1.6.1.x before 1.6.1.9; Business Edition A.x.x, B.x.x before B.2.5.12, C.2.x.x before C.2.4.5, and C.3.x.x before C.3.2.2; AsteriskNOW 1.5; and s800i 1.3.x before 1.3.0.5 generate different error messages depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames via multiple crafted REGISTER messages with inconsistent usernames in the URI in the To header and the Digest in the Authorization header.
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 [-]
|
Configuration 4 [-]
|
No data.
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2009-11-10T18:00:00
Updated: 2024-08-07T06:38:30.134Z
Reserved: 2009-10-16T00:00:00
Link: CVE-2009-3727
Vulnrichment
No data.
NVD
Status : Modified
Published: 2009-11-10T18:30:00.250
Modified: 2024-11-21T01:08:03.907
Link: CVE-2009-3727
Redhat