CVE-2020-29450 : What You Need to Know
Learn about CVE-2020-29450 affecting Atlassian Confluence Server versions before 7.2.0, allowing remote attackers to disrupt application availability via a Denial of Service (DoS) vulnerability.
Atlassian Confluence Server versions before 7.2.0 are susceptible to a Denial of Service (DoS) vulnerability in the avatar upload feature.
Understanding CVE-2020-29450
This CVE involves a vulnerability in Atlassian Confluence Server that allows remote attackers to impact the application's availability through a DoS attack.
What is CVE-2020-29450?
The CVE-2020-29450 vulnerability affects Atlassian Confluence Server versions prior to 7.2.0, enabling attackers to disrupt the application's availability via a DoS exploit in the avatar upload functionality.
The Impact of CVE-2020-29450
The vulnerability poses a risk of remote attackers causing a Denial of Service (DoS) condition on affected systems, potentially leading to service unavailability and disruption.
Technical Details of CVE-2020-29450
This section provides more in-depth technical insights into the CVE.
Vulnerability Description
The vulnerability in Atlassian Confluence Server allows remote attackers to exploit the avatar upload feature, leading to a DoS condition on systems running versions earlier than 7.2.0.
Affected Systems and Versions
- Product: Confluence Server
- Vendor: Atlassian
- Versions Affected: Before 7.2.0
- Version Type: Custom
Exploitation Mechanism
Attackers can exploit this vulnerability by leveraging the avatar upload feature in affected versions of Atlassian Confluence Server, causing a DoS impact on the application's availability.
Mitigation and Prevention
Protecting systems from CVE-2020-29450 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Upgrade Atlassian Confluence Server to version 7.2.0 or later to mitigate the vulnerability.
- Monitor and restrict avatar uploads to prevent potential exploitation.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Implement network security measures to detect and block DoS attacks.
Patching and Updates
- Apply security patches provided by Atlassian promptly to address the vulnerability and enhance system security.