CVE-2024-4215: Pgadmin 4 Auth Bypass Vulnerability

CVE-2024-4215 Overview

CVE-2024-4215 is a multi-factor authentication (MFA) bypass vulnerability affecting pgAdmin version 8.5 and earlier. pgAdmin is the most widely used open-source administration and development platform for PostgreSQL databases. An attacker who obtains a legitimate username and password can authenticate to the application and perform sensitive actions, regardless of whether the target account has MFA enrolled. Impacted operations include file management and SQL query execution against connected PostgreSQL servers. The flaw carries a network attack vector and requires only low-privilege credentials, making credential-stuffing and phishing preludes viable.

Critical Impact
Attackers with valid credentials bypass MFA entirely and gain full access to pgAdmin functionality, including SQL execution against backend databases.

Affected Products

pgAdmin 4 versions up to and including 8.5
Fedora 40 packages shipping vulnerable pgAdmin builds
PostgreSQL environments administered through affected pgAdmin instances

Discovery Timeline

2024-05-02 - CVE-2024-4215 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-4215

Vulnerability Analysis

The vulnerability resides in the authentication flow of pgAdmin 4. The application validates username and password credentials but fails to enforce the MFA challenge step for accounts that have MFA configured. As a result, the second authentication factor is never verified before the session is granted authenticated status.

Once authenticated, the attacker inherits all privileges of the compromised account. This includes running arbitrary SQL through the query tool, managing server connections, and interacting with the local file system through pgAdmin's file manager. The reference to [CWE-89] (SQL Injection) in the CVE record reflects the downstream capability to execute attacker-controlled SQL against backend PostgreSQL servers once access is obtained.

Root Cause

The authentication state machine transitions an account to the authenticated state after primary credential verification without validating the MFA factor. The MFA enforcement check is either skipped or unreachable in the code path used during login. See the GitHub Issue #7425 tracker for maintainer discussion.

Attack Vector

An attacker delivers valid credentials over the network to the pgAdmin login endpoint. Credentials may originate from phishing, password reuse, credential stuffing, or prior breaches. The attacker submits primary credentials and receives an authenticated session without ever satisfying the MFA challenge. From this session, the attacker performs any action the account is authorized to execute, including SQL execution and file operations. Refer to the Fedora Package Announcement for distribution-specific details.

Detection Methods for CVE-2024-4215

Indicators of Compromise

Successful pgAdmin logins for MFA-enrolled accounts that lack a corresponding MFA challenge event in application logs.
Unexpected SQL queries executed through pgAdmin's query tool from unfamiliar client IP addresses.
File manager activity within pgAdmin from accounts that historically use only the query interface.
Session establishment for administrative accounts outside normal working hours or from atypical geolocations.

Detection Strategies

Correlate pgAdmin authentication logs against MFA provider logs to identify sessions that skipped the second factor.
Alert on any authenticated pgAdmin session for an MFA-enrolled user when no MFA success event is recorded within the same window.
Monitor PostgreSQL server logs for high-privilege queries originating from pgAdmin service accounts.

Monitoring Recommendations

Forward pgAdmin web server access logs and application logs to a centralized SIEM for correlation.
Track failed and successful login rates against pgAdmin endpoints to identify credential stuffing precursors.
Enable PostgreSQL statement logging for accounts accessed through pgAdmin and review for anomalous DDL or file-related functions such as COPY and pg_read_file.

How to Mitigate CVE-2024-4215

Immediate Actions Required

Upgrade pgAdmin 4 to a version later than 8.5 that includes the MFA enforcement fix.
Rotate credentials for all pgAdmin user accounts, prioritizing administrative accounts.
Restrict network access to pgAdmin interfaces using firewall rules or a VPN so that only trusted hosts can reach the login page.
Review pgAdmin and PostgreSQL logs for signs of unauthorized access since the deployment date.

Patch Information

Upgrade to a fixed pgAdmin 4 release published after version 8.5. Fedora 40 users should apply updates referenced in the Fedora Package Announcement. Track the fix through GitHub Issue #7425 and confirm the deployed build corresponds to a patched release.

Workarounds

Enforce strong, unique passwords and disable accounts that show reuse against known-breach datasets while patching is scheduled.
Place pgAdmin behind a reverse proxy that requires an independent authentication layer such as SSO with enforced MFA.
Restrict pgAdmin exposure to internal networks only and block direct internet access until the upgrade is applied.
Reduce privileges of PostgreSQL roles used through pgAdmin so that a compromised session cannot execute high-impact operations.

bash

# Restrict pgAdmin to loopback and enforce upstream auth via reverse proxy
# Example: bind pgAdmin to localhost only
export PGADMIN_LISTEN_ADDRESS=127.0.0.1
export PGADMIN_LISTEN_PORT=5050

# Verify installed pgAdmin version is greater than 8.5
pip show pgadmin4 | grep -i version