| Package | Affected versions | Patched versions |
|---|---|---|
| realport | ≤ 1.9-40≤ 4.10.490 |
In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password. The attacker may then crack this hash offline in order to successfully login to the server.
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