CVE-2013-2264

Asterisk Open Source <1.8.20.2, <10.12.2, <11.2.2 - Unauthenticated User Enumeration via SIP

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Vendor Advisory x_refsource_confirm
https://issues.asterisk.org/jira/browse/ASTERISK-21013

Scores

EPSS 0.0125
EPSS Percentile 65.9%

Details

CWE
CWE-200
Status published
Products (18)
asterisk/business_edition c.3.2.2
asterisk/business_edition c.3.3
asterisk/business_edition c.3.3.2
asterisk/certified_asterisk 1.8.15 cert1 (4 CPE variants)
asterisk/certified_asterisk 1.8.15.0 (2 CPE variants)
asterisk/digiumphones 10.0.0 (6 CPE variants)
asterisk/digiumphones 10.1.0 (3 CPE variants)
asterisk/digiumphones 10.2.0 (5 CPE variants)
asterisk/digiumphones 10.3.0 (3 CPE variants)
asterisk/digiumphones 10.4.0 (4 CPE variants)
... and 8 more
Published Apr 01, 2013
Tracked Since Feb 18, 2026