2016-12-12 22:59:01 2017-07-27 03:29:07

An issue was discovered in Asterisk Open Source 11.x before 11.25.1, 13.x before 13.13.1, and 14.x before 14.2.1 and Certified Asterisk 11.x before 11.6-cert16 and 13.x before 13.8-cert4. The chan_sip channel driver has a liberal definition for whitespace when attempting to strip the content between a SIP header name and a colon character. Rather than following RFC 3261 and stripping only spaces and horizontal tabs, Asterisk treats any non-printable ASCII character as if it were whitespace. This means that headers such as Contact\x01: will be seen as a valid Contact header. This mostly does not pose a problem until Asterisk is placed in tandem with an authenticating SIP proxy. In such a case, a crafty combination of valid and invalid To headers can cause a proxy to allow an INVITE request into Asterisk without authentication since it believes the request is an in-dialog request. However, because of the bug described above, the request will look like an out-of-dialog request to Asterisk. Asterisk will then process the request as a new call. The result is that Asterisk can process calls from unvetted sources without any authentication. If you do not use a proxy for authentication, then this issue does not affect you. If your proxy is dialog-aware (meaning that the proxy keeps track of what dialogs are currently valid), then this issue does not affect you. If you use chan_pjsip instead of chan_sip, then this issue does not affect you.

Vector

NETWORK

Complexity

LOW

Authentication

NONE

Confidentiality

NONE

Integrity

PARTIAL

Availability

NONE
Digium Asterisk 13.11.1 (not an official CPE) Digium Asterisk 13.11.0 (not an official CPE) Digium Asterisk 14.0.2 (not an official CPE) Digium Asterisk 14.0.1 (not an official CPE) Digium Asterisk 11.0.0 release candidate 1 Digium Asterisk 11.0.0 release candidate 2 Digium Certified asterisk 11.1.0 (not an official CPE) Digium Asterisk 13.2.1 (not an official CPE) Digium Asterisk 13.2.0 Digium Asterisk 14.0.0 (not an official CPE) Digium Asterisk 13.6.0 (not an official CPE) Digium Certified asterisk 11.4.0 Rc3 (not an official CPE) Digium Asterisk 11.6.1 (not an official CPE) Digium Certified asterisk 11.4.0 Rc2 (not an official CPE) Digium Asterisk 11.6.0 Digium Certified asterisk 11.4.0 Rc1 (not an official CPE) Digium Certified Asterisk 11.6.0 Digium Certified asterisk 11.5.0 (not an official CPE) Digium Asterisk 11.22.0 (not an official CPE) Digium Asterisk 11.2.1 (not an official CPE) Digium Certified asterisk 11.0.0 Rc2 (not an official CPE) Digium Asterisk 11.2.0 (not an official CPE) Digium Certified asterisk 11.0.0 Rc1 (not an official CPE) Digium Certified Asterisk 11.6 cert 2 LTS Digium Certified Asterisk 11.6 cert 1 LTS Digium Certified Asterisk 11.6 cert 3 LTS Digium Asterisk 11.2.2 (not an official CPE) Digium Asterisk 11.19.0 (not an official CPE) Digium Asterisk 13.10.0 (not an official CPE) Digium Asterisk 11.15.1 (not an official CPE) Digium Asterisk 11.15.0 (not an official CPE) Digium Asterisk 11.11.0 Digium Certified asterisk 11.2.0 (not an official CPE) Digium Asterisk 14.1.1 (not an official CPE) Digium Asterisk 14.1.0 (not an official CPE) Digium Asterisk 13.13.0 (not an official CPE) Digium Asterisk 11.10.0 Digium Asterisk 13.7.2 (not an official CPE) Digium Asterisk 13.7.1 (not an official CPE) Digium Asterisk 13.3.0 (not an official CPE) Digium Asterisk 13.7.0 (not an official CPE) Digium Certified asterisk 11.5.0 Rc2 (not an official CPE) Digium Asterisk 11.7.0 Digium Certified asterisk 11.5.0 Rc1 (not an official CPE) Digium Asterisk 11.25.0 (not an official CPE) Digium Asterisk 11.21.2 (not an official CPE) Digium Asterisk 11.21.1 (not an official CPE) Digium Certified asterisk 11.1.0 Rc2 (not an official CPE) Digium Asterisk 11.3.0 (not an official CPE) Digium Certified asterisk 11.1.0 Rc1 (not an official CPE) Digium Certified asterisk 11.1.0 Rc3 (not an official CPE) Digium Asterisk 13.0.0 Beta3 (not an official CPE) Digium Asterisk 13.0.0 Beta2 (not an official CPE) Digium Asterisk 13.0.0 Beta1 (not an official CPE) Digium Certified Asterisk 11.6-cert1 release candidate 2 Digium Asterisk 11.14.0 (not an official CPE) Digium Asterisk 13.3.2 (not an official CPE) Digium Asterisk 13.3.1 (not an official CPE) Digium Asterisk 11.14.2 (not an official CPE) Digium Asterisk 11.14.1 (not an official CPE) Digium Asterisk 14.1.2 (not an official CPE) Digium Asterisk 11.10.2 (not an official CPE) Digium Asterisk 11.10.1 Digium Certified Asterisk 11.6-cert1 release candidate 1 Digium Asterisk 11.18.0 (not an official CPE) Digium Certified asterisk 11.6 Cert14 ~~lts~~~ (not an official CPE) Digium Asterisk 13.0.1 Digium Certified asterisk 11.3.0 (not an official CPE) Digium Asterisk 13.0.0 (not an official CPE) Digium Certified asterisk 11.6 Cert12 ~~lts~~~ (not an official CPE) Digium Certified asterisk 11.6 Cert13 ~~lts~~~ (not an official CPE) Digium Asterisk 14.2.0 (not an official CPE) Digium Asterisk 13.12.2 (not an official CPE) Digium Certified asterisk 11.6 Cert11 ~~lts~~~ (not an official CPE) Digium Asterisk 13.12.1 (not an official CPE) Digium Asterisk 11.2.0 release candidate 1 Digium Asterisk 13.8.0 (not an official CPE) Digium Asterisk 13.8.1 (not an official CPE) Digium Asterisk 13.0.2 (not an official CPE) Digium Certified asterisk 11.6 Cert10 ~~lts~~~ (not an official CPE) Digium Certified Asterisk 11.6.0 release candidate 1 Digium Asterisk 11.22.0 Rc1 (not an official CPE) Digium Asterisk 11.24.0 (not an official CPE) Digium Asterisk 11.24.1 (not an official CPE) Digium Certified Asterisk 11.6-cert1 Digium Certified Asterisk 11.6-cert2 Digium Certified Asterisk 11.6.0 release candidate 2 Digium Certified Asterisk 11.6-cert3 Digium Asterisk 14.0.0 Rc1 (not an official CPE) Digium Asterisk 11.0.1 Digium Asterisk 14.0.0 Rc2 (not an official CPE) Digium Asterisk 11.0.0 Digium Certified asterisk 11.2.0 Rc1 (not an official CPE) Digium Certified Asterisk 11.6.0 LTS Digium Asterisk 11.0.2 Digium Asterisk 11.21.0 (not an official CPE) Digium Asterisk 11.8.1 Digium Certified asterisk 11.2.0 Rc2 (not an official CPE) Digium Asterisk 11.8.0 (not an official CPE) Digium Asterisk 13.10.0 Rc1 (not an official CPE) Digium Asterisk 11.4.0 (not an official CPE) Digium Asterisk 13.8.2 (not an official CPE) Digium Asterisk 11.13.1 (not an official CPE) Digium Asterisk 11.13.0 Digium Asterisk 13.4.0 (not an official CPE) Digium Asterisk 11.2.0 Rc2 (not an official CPE) Digium Asterisk 13.12.0 (not an official CPE) Digium Asterisk 11.17.1 (not an official CPE) Digium Asterisk 11.17.0 (not an official CPE) Digium Asterisk 11.12.0 Digium Certified asterisk 11.6 Cert15 ~~lts~~~ (not an official CPE) Digium Asterisk 11.1.0 release candidate 3 Digium Asterisk 11.16.0 (not an official CPE) Digium Asterisk 14.0.0 Beta2 (not an official CPE) Digium Asterisk 11.0.0 beta1 Digium Asterisk 11.0.0 beta2 Digium Asterisk 13.5.0 (not an official CPE) Digium Asterisk 14.0.0 Beta1 (not an official CPE) Digium Asterisk 11.12.1 (not an official CPE) Digium Asterisk 13.9.1 (not an official CPE) Digium Asterisk 11.5.0 (not an official CPE) Digium Certified asterisk 11.3.0 Rc1 (not an official CPE) Digium Asterisk 11.9.0 Digium Certified asterisk 11.3.0 Rc2 (not an official CPE) Digium Asterisk 11.20.0 (not an official CPE) Digium Asterisk 11.1.1 Digium Asterisk 11.1.2 Digium Asterisk 11.1.0 Digium Asterisk 11.23.0 (not an official CPE) Digium Asterisk 13.8.0 Rc1 (not an official CPE) Digium Certified asterisk 11.4.0 (not an official CPE) Digium Asterisk 11.23.0 Rc1 (not an official CPE) Digium Asterisk 11.23.1 (not an official CPE) Digium Asterisk 11.5.1 (not an official CPE) Digium Asterisk 13.1.1 (not an official CPE) Digium Certified Asterisk 11.6 cert 7 LTS Digium Certified Asterisk 11.6 cert 5 LTS Digium Asterisk 13.9.0 (not an official CPE) Digium Certified Asterisk 11.6 cert 6 LTS Digium Asterisk 11.1.0 release candidate 1 Digium Certified asterisk 11.0.0 (not an official CPE) Digium Certified Asterisk 11.6 cert 4 LTS Digium Asterisk 13.11.2 (not an official CPE) Digium Certified asterisk 11.6 Cert9 ~~lts~~~ (not an official CPE) Digium Certified Asterisk 11.6 cert8 LTS Digium Asterisk 13.1.0