CVE-2019-18790
Published: 22 November 2019
An issue was discovered in channels/chan_sip.c in Sangoma Asterisk 13.x before 13.29.2, 16.x before 16.6.2, and 17.x before 17.0.1, and Certified Asterisk 13.21 before cert5. A SIP request can be sent to Asterisk that can change a SIP peer's IP address. A REGISTER does not need to occur, and calls can be hijacked as a result. The only thing that needs to be known is the peer's name; authentication details such as passwords do not need to be known. This vulnerability is only exploitable when the nat option is set to the default, or auto_force_rport.
Priority
Status
Package | Release | Status |
---|---|---|
asterisk Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Needs triage
|
|
groovy |
Not vulnerable
(1:16.10.0~dfsg-1)
|
|
hirsute |
Not vulnerable
(1:16.10.0~dfsg-1)
|
|
impish |
Not vulnerable
(1:16.10.0~dfsg-1)
|
|
jammy |
Not vulnerable
(1:16.10.0~dfsg-1)
|
|
kinetic |
Not vulnerable
(1:16.10.0~dfsg-1)
|
|
lunar |
Not vulnerable
(1:16.10.0~dfsg-1)
|
|
mantic |
Not vulnerable
(1:16.10.0~dfsg-1)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
References
- https://downloads.asterisk.org/pub/security/AST-2019-006.html
- https://issues.asterisk.org/jira/browse/ASTERISK-28589
- http://downloads.asterisk.org/pub/security/AST-2019-006.html
- https://www.asterisk.org/downloads/security-advisories
- https://www.cve.org/CVERecord?id=CVE-2019-18790
- NVD
- Launchpad
- Debian