The SIP channel driver in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; Asterisk Business Edition (BE) C.3.x before C.3.8.1; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones exhibits different behavior for invalid INVITE, SUBSCRIBE, and REGISTER transactions depending on whether the user account exists, which allows remote attackers to enumerate account names by (1) reading HTTP status codes, (2) reading additional text in a 403 (aka Forbidden) response, or (3) observing whether certain retransmissions occur.
                
            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
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
| Vendors | Products | 
|---|---|
| Asterisk | 
 | 
Configuration 1 [-]
| 
 | 
Configuration 2 [-]
| 
 | 
Configuration 3 [-]
| 
 | 
Configuration 4 [-]
| 
 | 
Configuration 5 [-]
| 
 | 
Configuration 6 [-]
| 
 | 
No data.
References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: mitre
Published: 2013-03-29T18:00:00Z
Updated: 2024-09-16T17:38:10.972Z
Reserved: 2013-02-20T00:00:00Z
Link: CVE-2013-2264
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Deferred
Published: 2013-04-01T16:55:03.747
Modified: 2025-04-11T00:51:21.963
Link: CVE-2013-2264
 Redhat
                        Redhat
                    No data.