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.
Published: 2019-11-22
Score: 6.5 Medium
EPSS: 7.4% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-2017-1 asterisk security update
Debian DLA Debian DLA DLA-2969-1 asterisk security update
EUVD EUVD EUVD-2019-8495 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.
History

No history.

Subscriptions

Debian Debian Linux
Digium Asterisk Certified Asterisk
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T02:02:38.262Z

Reserved: 2019-11-06T00:00:00.000Z

Link: CVE-2019-18790

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-11-22T17:15:11.740

Modified: 2024-11-21T04:33:34.090

Link: CVE-2019-18790

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses