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