CVE-2019-18790
First published: Fri Nov 22 2019(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Digium Asterisk | >=13.0.0<13.29.2 | |
| Digium Asterisk | >=16.0.0<16.6.2 | |
| Digium Asterisk | >=17.0.0<17.0.1 | |
| Digium Certified Asterisk | =13.21.0 | |
| Digium Certified Asterisk | =13.21.0-cert1 | |
| Digium Certified Asterisk | =13.21.0-cert2 | |
| Digium Certified Asterisk | =13.21.0-cert3 | |
| Digium Certified Asterisk | =13.21.0-cert4 | |
| Digium Certified Asterisk | =13.21.0-rc1 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2019-18790?
The severity of CVE-2019-18790 is medium (6.5).
Which software versions are affected by CVE-2019-18790?
The affected software versions are Digium Asterisk 13.x (before 13.29.2), 16.x (before 16.6.2), 17.x (before 17.0.1), and Digium Certified Asterisk 13.21 (before cert5).
What is the vulnerability description of CVE-2019-18790?
CVE-2019-18790 is a vulnerability in Sangoma Asterisk that allows an attacker to change a SIP peer's IP address via a SIP request without the need for a REGISTER.
Are there any references available for CVE-2019-18790?
Yes, you can find the references for CVE-2019-18790 at the following links: [link1], [link2], [link3].
How can I fix CVE-2019-18790?
To fix CVE-2019-18790, update to Sangoma Asterisk version 13.29.2, 16.6.2, 17.0.1, or Certified Asterisk 13.21 cert5.
- collector/nvd-index
- agent/severity
- agent/references
- agent/weakness
- agent/author
- agent/type
- agent/event
- agent/description
- agent/remedy
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/digium
- canonical/digium asterisk
- version/digium asterisk/13.0.0
- version/digium asterisk/16.0.0
- version/digium asterisk/17.0.0
- canonical/digium certified asterisk
- version/digium certified asterisk/13.21.0
- version/digium certified asterisk/13.21.0-cert1
- version/digium certified asterisk/13.21.0-cert2
- version/digium certified asterisk/13.21.0-cert3
- version/digium certified asterisk/13.21.0-cert4
- version/digium certified asterisk/13.21.0-rc1
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0