| 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 |
|---|---|---|
| libcurl | ≥ 7.63.0, ≤ 7.75.0 | |
| communications billing and revenue management | = 12.0.0.3.0 | |
| essbase | = 21.2 | |
| sinec infrastructure network services | < 1.0.1.1 | 1.0.1.1 |
| universal forwarder | = 9.1.0≥ 8.2.0, < 8.2.12≥ 9.0.0, < 9.0.6 | 8.2.129.0.6 |
curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly "short-cut" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.
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