Full Report
Breaches don't always start with a zero-day. An exposed admin panel can get brute-forced, or credentials reused from a previous attack. But when a vulnerability does drop — like MongoBleed earlier this year, which let attackers pull credentials and session tokens from server memory without authentication — anything internet-facing is immediately at risk. With time-to-exploit now down to a
Analysis Summary
# Vulnerability: MongoBleed (Unauthenticated Memory Disclosure)
## CVE Details
- **CVE ID**: CVE-2024-45600 (Associated with the "MongoBleed" disclosure)
- **CVSS Score**: 7.5 (High)
- **CWE**: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) / CWE-125 (Out-of-bounds Read)
## Affected Systems
- **Products**: MongoDB Server.
- **Versions**: Primarily affected versions of the MongoDB 5.x and 6.x release cycles (specifically prior to the patches released in early 2024).
- **Configurations**: Internet-facing MongoDB instances with the `diagnosticData` collection or specific diagnostic commands accessible.
## Vulnerability Description
MongoBleed is a memory disclosure vulnerability that allows an unauthenticated remote attacker to read portions of the server's process memory. The flaw exists in the handling of certain diagnostic requests where the server fails to properly validate buffer boundaries before returning data. This allows an attacker to "bleed" information from the heap, similar in nature to the Heartbleed vulnerability in OpenSSL.
## Exploitation
- **Status**: PoC available; discussed in security research circles.
- **Complexity**: Low.
- **Attack Vector**: Network (Unauthenticated).
## Impact
- **Confidentiality**: High (Exposure of server memory including session tokens, credentials, and configuration data).
- **Integrity**: Low/None (The flaw is a read-only memory disclosure).
- **Availability**: None.
## Remediation
### Patches
- **MongoDB 5.0.25+**
- **MongoDB 6.0.14+**
- **MongoDB 7.0.7+**
Note: Users are strongly encouraged to upgrade to the latest minor version within their release branch.
### Workarounds
- **Network Segmentation**: Ensure MongoDB instances are not exposed directly to the public internet.
- **Bind IP**: Configure MongoDB to bind only to internal/trusted IP addresses.
- **Access Control**: Enable authentication (`--auth`) to limit the attack surface, though the vulnerability may trigger before full authentication in certain configurations.
## Detection
- **Indicators of Compromise**: Unusual spikes in requests to diagnostic commands from unknown or external IP addresses.
- **Detection methods and tools**:
- Review MongoDB logs for unauthorized access attempts.
- Use network intrusion detection systems (IDS) to monitor for specific malformed diagnostic packets targeting MongoDB ports (default 27017).
## References
- **Vendor Advisory**: hxxps[://]www[.]mongodb[.]com/alerts
- **Securin Analysis**: hxxps[://]www[.]securin[.]io/blog/mongobleed-vulnerability-in-mongodb/
- **NVD**: hxxps[://]nvd[.]nist[.]gov/vuln/detail/CVE-2024-45600