CVE-2020-7925 : What You Need to Know
Learn about CVE-2020-7925, a denial of service vulnerability in MongoDB Server versions prior to 4.2.9 and 4.4.0-rc12. Understand the impact, affected systems, and mitigation steps.
A denial of service vulnerability in MongoDB Server versions prior to 4.2.9 and 4.4.0-rc12 allows unauthenticated attackers to exploit uninitialized memory via specially crafted requests.
Understanding CVE-2020-7925
This CVE involves incorrect validation of user input in the role name parser, potentially leading to a denial of service attack.
What is CVE-2020-7925?
The vulnerability in MongoDB Server versions prior to 4.2.9 and 4.4.0-rc12 allows unauthenticated attackers to trigger a denial of service by utilizing uninitialized memory through crafted requests.
The Impact of CVE-2020-7925
The vulnerability poses a high availability impact, with a CVSS base score of 7.5, indicating a significant threat to affected systems.
Technical Details of CVE-2020-7925
This section delves into the specifics of the vulnerability.
Vulnerability Description
The issue arises from incorrect validation of user input in the role name parser, enabling attackers to exploit uninitialized memory.
Affected Systems and Versions
- Affected Product: MongoDB Server
- Vendor: MongoDB Inc.
- Vulnerable Versions:
- MongoDB Server 4.2 versions prior to 4.2.9
- MongoDB Server 4.4 versions prior to 4.4.0-rc12
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Availability Impact: High
- Privileges Required: None
- Scope: Unchanged
- User Interaction: None
- Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Mitigation and Prevention
Protecting systems from CVE-2020-7925 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update MongoDB Server to versions 4.2.9 or 4.4.0-rc12 to mitigate the vulnerability.
- Monitor for any unusual network activity that could indicate exploitation.
Long-Term Security Practices
- Implement strict input validation mechanisms to prevent similar vulnerabilities.
- Regularly update and patch MongoDB Server to address security flaws.
Patching and Updates
- Apply the latest patches and updates provided by MongoDB Inc. to ensure system security.