Description
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.
CVSS Metrics
- Vector
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- network
- Access Cmplx
- low
- Auth
- none
- Confidentiality
- partial
- Integrity
- none
- Availability
- none
- Weaknesses
- CWE-200
Metadata
- Primary Vendor
- ASTERISK
- Published
- 4/1/2013
- Last Modified
- 4/11/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
asterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : certified_asteriskasterisk : certified_asteriskasterisk : certified_asteriskasterisk : certified_asteriskasterisk : certified_asteriskasterisk : certified_asteriskasterisk : business_editionasterisk : business_editionasterisk : business_editionasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphonesasterisk : digiumphones
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