Covered by FixVibehigh

ZXCVVAKATAWASEWASEGI0. Lawa ni veitaqomaki: Tarova na vakaraitaki ni itukutuku sega ni vakadonui ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASE1 Vulica na sala e rawa ni vakaraitaka kina na itukutuku ni Firestore kei na maroroi ni o vei ira na vakayagataka sega ni vakadonui kei na sala me vakavinakataki kina na leqa oqo. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASE2. Na lawa ni veitaqomaki sa ikoya na itataqomaki taumada me baleta na veiqaravi sega ni vakayagataki ena kena vakayagataki na Firestore kei na maroroi ni o. Ni sa rui vakatarai na lawa oqo, me vaka na kena vakatarai na wiliwili se volavola ni vuravura raraba ena buli, e rawa ni ra bypass na dauvakacaca na logic ni kerekere e nakita me butakoca se bokoca na itukutuku bibi. Na vakadidike oqo e vakadikeva na veivakacacani e dau yaco, na leqa ni 'ivakarau ni veivakatovolei' defaults, kei na sala me vakayacori kina na lewa ni curu yavutaki ena ivakatakilakila. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASE3. Na lawa ni veitaqomaki e vakarautaka e dua na iwalewale ni granular, vakayagataki ni dauveiqaravi me taqomaki na itukutuku ena Firestore, itukutuku ni gauna dina, kei na maroroi ni o Firebase. Me vaka ni ZXCVFIXVIBETOKEN3ZXCV kerekere e dau veimaliwai kei na veiqaravi ni o oqo vakadodonu mai na yasa ni kasitama, na lawa oqo e matataka na veivakataotaki duadua ga e tarova na sega ni vakadonui na curu ki na itukutuku ni backend ZXCVFIXVIBETOKEN1ZXCV. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASE4. ### Na kena revurevu ni lawa ni veivakadonui ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEGA5. Na lawa cala e rawa ni vakavuna na vakaraitaki ni itukutuku bibi. Kevaka e vakarautaki na lawa me vakatarai vakasivia — me kena ivakaraitaki, vakayagataka na ituvatuva ni 'ivakarau ni veivakatovolei' e vakatara na curu raraba — e dua na tamata e vakayagataka na kila ni ID ni cakacaka e rawa ni wilika, veisautaka, se bokoca na itukutuku taucoko ni itukutuku ZXCVFIXVIBETOKEN1ZXCV. Oqo e bypass kece na ivakarau ni veitaqomaki ni kasitama-yasana ka rawa ni vakavuna na yali ni itukutuku ni vakayagataki bibi se na vakaleqai taucoko ni veiqaravi ZXCVFIXVIBETOKEN2ZXCV. ZXCVVAKATAWASEWASEI ZXCVVAKAVUVULI6. ### Vuna: Sega ni rauta na Logic ni veivakadonui ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASE77. Na vu ni veivakacacani oqo e dau na kena sega ni vakayacori na ituvaki vakatabakidua e vakatabuya na rawa-ka e yavutaki ena ivakatakilakila ni vakayagataki se na itovo ni ivurevure ZXCVFIXVIBETOKEN2ZXCV. Era dau biuta na dauvakatorocaketaka na veivakarautaki taumada e cakacaka ena vanua ni buli iyaya ka sega ni vakadeitaka na Firebase na ka ZXCVFIXVIBETOKEN3ZXCV. Ni sega ni vakatovotovotaki na ZXCVFIXVIBETOKEN1ZXCV, na ivakarau e sega ni rawa ni vakaduiduitaka e dua na vakayagataki vakalawa vakadeitaki kei na dua na kerekere sega ni kilai ZXCVFIXVIBETOKEN4ZXCV. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASEG8. ### Veivakadodonutaki vakatekinoloji ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASE9. Na kena vakadeitaki e dua na vanua ni Firebase e gadrevi kina na toso mai na dolavi ni curu ki na dua na ivakaraitaki ni iliuliu-ni-lailai duadua-na madigi. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASEI10 * Vakadeitaka na veivakadeitaki: Vakadeitaka ni sala kece ni vakasama e gadrevi kina e dua na gauna ni vakayagataki dodonu ena kena dikevi kevaka e sega ni null na Firebase na ka ZXCVFIXVIBETOKEN1ZXCV. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASEI11 * Vakayacora na ivakatakilakila-yavutaki na rawa-ka: Vakarautaka na lawa e vakatauvatana na UID ni vakayagataki (Firebase) ki na dua na vanua ena loma ni ivola se na ID ni ivola vakataki koya me vakadeitaka ni o ira na vakayagataka e rawa ni ra rawata ga na nodra itukutuku ZXCVFIXVIBETOKEN1ZXCV. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASEI12 * Vakadonui ni veivakadonui ni Granular: Vakawalena na veivakadonui ni vuravura raraba me baleta na veisoqoni. Ia, vakamacalataka na lawa vakatabakidua me baleta na veisoqoni yadua kei na veisoqoni lalai me vakalailaitaka na kena rawa ni vakacacani na dela ni Firebase. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASEI13 * Vakadeitaki ena Suite ni Emulator: Vakayagataka na ZXCVFIXVIBETOKEN1ZXCV Suite ni Emulator me vakatovolei kina na lawa ni veitaqomaki ena vanua. Oqo e rawa kina na veivakadeitaki ni logic ni lewa ni rawa-ka me baleta na veimataqali personas ni vakayagataki ni bera ni vakayagataki ki na dua na vanua ni bula Firebase. ZXCVVAKATAWASEWASEI ZXCVVAKATAWASEWASEI14 ## Na sala e vakatovolei kina

Firebase Security Rules are the primary defense for serverless applications using Firestore and Cloud Storage. When these rules are too permissive, such as allowing global read or write access in production, attackers can bypass intended application logic to steal or delete sensitive data. This research explores common misconfigurations, the risks of 'test mode' defaults, and how to implement identity-based access control.

CWE-284CWE-863

Firebase Security Rules provide a granular, server-enforced mechanism to protect data in Firestore, Realtime Database, and Cloud Storage [S1]. Because Firebase applications often interact with these cloud services directly from the client side, these rules represent the only barrier preventing unauthorized access to the backend data [S1].

Impact of Permissive Rules

Misconfigured rules can lead to significant data exposure [S2]. If rules are set to be overly permissive—for example, using default 'test mode' settings that allow global access—any user with knowledge of the project ID can read, modify, or delete the entire database content [S2]. This bypasses all client-side security measures and can result in the loss of sensitive user information or total service disruption [S2].

Root Cause: Insufficient Authorization Logic

The root cause of these vulnerabilities is typically the failure to implement specific conditions that restrict access based on user identity or resource attributes [S3]. Developers frequently leave default configurations active in production environments which do not validate the request.auth object [S3]. Without evaluating request.auth, the system cannot distinguish between a legitimate authenticated user and an anonymous requester [S3].

Technical Remediation

Securing a Firebase environment requires moving from open access to a principal-of-least-privilege model.

Enforce Authentication: Ensure that all sensitive paths require a valid user session by checking if the request.auth object is not null [S3].
Implement Identity-Based Access: Configure rules that compare the user's UID (request.auth.uid) to a field within the document or the document ID itself to ensure users can only access their own data [S3].
Granular Permission Scoping: Avoid global wildcards for collections. Instead, define specific rules for each collection and sub-collection to minimize the potential attack surface [S2].
Validation via Emulator Suite: Use the Firebase Emulator Suite to test security rules locally. This allows for verification of access control logic against various user personas before deploying to a live environment [S2].

How FixVibe tests for it

ZXCVVAKATAWASEWASEGI0. FixVibe sa okati kina oqo me vaka e dua na wiliwili-ga BaaS vakadidike. baas.firebase-rules e kauta laivi na Firebase na ituvatuva mai na isoqoni ni JavaScript vata ga, oka kina na ibulibuli ni isoqoni ni ZXCV ni gauna oqo, qai dikeva na itukutuku ni gauna dina, Firestore, kei na ZXCVENticage2UtVIXVIZBE kerekere ni wiliwili ga. Me baleta na Firestore, e tovolea taumada na lisi ni isoqoni ni yavu; ni sa vakatabui na lisi, e dau vakadikeva talega na yaca ni isoqoni vakaitamera me vaka na users, customers, orders, admin, y settings. E ripotetaka ga na rawaka sega ni kilai na wiliwili se lisi ka sega ni vola, bokoca, se maroroya na kasitama ivola ni veika e tiko kina.