Unrated severityNVD Advisory· Published Nov 22, 2019· Updated Aug 5, 2024
CVE-2019-18790
CVE-2019-18790
Description
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.
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Affected products
3- Sangoma/Asteriskdescription
- Range: 13.21 before cert5
Patches
Vulnerability mechanics
References
4- downloads.asterisk.org/pub/security/AST-2019-006.htmlmitrex_refsource_MISC
- lists.debian.org/debian-lts-announce/2019/11/msg00038.htmlmitremailing-listx_refsource_MLIST
- lists.debian.org/debian-lts-announce/2022/04/msg00001.htmlmitremailing-listx_refsource_MLIST
- www.asterisk.org/downloads/security-advisoriesmitrex_refsource_MISC
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