CVE-2020-13949 : Exploit Details and Defense Strategies
Learn about CVE-2020-13949, a denial of service vulnerability in Apache Thrift 0.9.3 to 0.13.0. Find out the impact, affected systems, exploitation details, and mitigation steps to secure your systems.
Apache Thrift 0.9.3 to 0.13.0 allows malicious RPC clients to trigger large memory allocations, potentially leading to denial of service.
Understanding CVE-2020-13949
Apache Thrift versions 0.9.3 to 0.13.0 are vulnerable to a denial of service attack due to a memory allocation issue caused by short messages sent by malicious RPC clients.
What is CVE-2020-13949?
CVE-2020-13949 is a vulnerability in Apache Thrift versions 0.9.3 to 0.13.0 that allows attackers to exploit the system by sending specially crafted short messages, resulting in excessive memory allocation and potential denial of service.
The Impact of CVE-2020-13949
The vulnerability in Apache Thrift 0.9.3 to 0.13.0 could be exploited by malicious clients to exhaust system resources, leading to a denial of service condition.
Technical Details of CVE-2020-13949
Apache Thrift 0.9.3 to 0.13.0 is susceptible to a denial of service attack due to memory exhaustion caused by processing untrusted Thrift payloads.
Vulnerability Description
- Apache Thrift 0.9.3 to 0.13.0 allows malicious RPC clients to trigger large memory allocations.
Affected Systems and Versions
- Product: Apache Thrift
- Versions: Apache Thrift 0.9.3 to 0.13.0
Exploitation Mechanism
- Malicious RPC clients can exploit the vulnerability by sending short messages that result in excessive memory allocation.
Mitigation and Prevention
To address CVE-2020-13949, follow these mitigation strategies:
Immediate Steps to Take
- Upgrade Apache Thrift to version 0.14.1 or later to fix the vulnerability.
- Apply patches provided by the vendor to mitigate the risk of denial of service attacks.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions to prevent known vulnerabilities.
- Implement network security measures to detect and block malicious traffic targeting Apache Thrift.
Patching and Updates
- Stay informed about security advisories and updates from Apache Thrift to address potential vulnerabilities promptly.