CVE-2013-2264
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…
Does this matter?
Lower severity and a low EPSS score (1.25%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 1.25% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- asterisk/open source · asterisk/certified asterisk · asterisk/business edition · asterisk/digiumphones
- Source
- cve@mitre.org
References
- http://downloads.asterisk.org/pub/security/AST-2013-003.htmlVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-21013Vendor Advisory
- http://downloads.asterisk.org/pub/security/AST-2013-003.htmlVendor Advisory
- https://issues.asterisk.org/jira/browse/ASTERISK-21013Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.