| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|---|---|
| asterisk | ≥ 13.0.0, < 13.29.2≥ 16.0.0, < 16.6.2≥ 17.0.0, < 17.0.1 | 13.29.216.6.217.0.1 |
| certified asterisk | = 13.21.0 |
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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