Feb. 24, 2022, 7:51 p.m. |

CERT Recently Published Vulnerability Notes kb.cert.org

Overview


Visual Voice Mail (VVM) services transmit unencrypted credentials via SMS. An attacker with the ability to read SMS messages can obtain VVM IMAP credentials and gain access to VVM data.


Description


VVM is specified by Open Mobile Terminal Platform-OMPT and is implemented with SMS and IMAP (and other protocols). VVM IMAP credentials are sent unencrypted in SMS messages. From vvm-disclosure:



When a client sends any sort of STATUS SMS (activate, deactivate, status), the carrier will respond with all …

credentials mail services sms voice

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