High advisory for Attendo (formerly Petpooja Payroll) Admi

Advisory overview

Attendo (formerly Petpooja Payroll) Admin Android application version 3.0.13 and earlier contains a hard-coded credentials vulnerability that allows attackers to extract production MQTT broker credentials by decompiling the APK's bundled Flutter configuration assets such as production.json and device-command configuration files. Attackers can use the recovered credentials to authenticate to the production MQTT broker over TCP 1883, access messaging topics containing employee attendance records, personal identifiers, Base64-encoded photographs, device telemetry, and authentication material, and publish messages to those topics, resulting in exposure of sensitive data and potential unauthorized message injection.

Related references

• https://medium.com/@TheWildEye/from-an-android-apk-to-production-mqtt-exposed-credentials-in-attendo-formerly-petpooja-payroll-eb701d23233e
• https://play.google.com/store/apps/details?id=com.petpooja.attendance
• https://www.vulncheck.com/advisories/attendo-admin-android-hard-coded-mqtt-broker-credentials