CVEvulnerability

CVE-2019-18790

6.5 MEDIUM Published 2019-11-22 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-11-22
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 2.0 ([email protected])
5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:N
Weaknesses
CWE-862

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.

Affected configurations

• 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 • debian debian linux 8.0 • debian debian linux 9.0

Related

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References