CVE-2013-2264
mediumpriority · track · 20EPSS 0.013 · 69 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (109)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- http://downloads.asterisk.org/pub/security/AST-2013-003.htmlcnnvd
- http://secunia.com/advisories/52776cnnvd
- http://secunia.com/advisories/52815cnnvd
- https://issues.asterisk.org/jira/browse/ASTERISK-21013cnnvd
- http://downloads.asterisk.org/pub/security/AST-2013-003.htmlenisa_euvd
- https://issues.asterisk.org/jira/browse/ASTERISK-21013enisa_euvd
- http://downloads.asterisk.org/pub/security/AST-2013-003.htmlVendor Advisorynvd
- https://issues.asterisk.org/jira/browse/ASTERISK-21013Vendor Advisorynvd
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