CVE-2020-29056 Explained : Impact and Mitigation
Discover the critical vulnerability in CDATA devices (72408A, 9008A, 9016A, etc.) allowing unauthorized users to gain root access via TFTP download configuration. Learn mitigation steps.
An issue was discovered on CDATA devices where an attacker can escape from a shell and gain root privileges through TFTP download configuration.
Understanding CVE-2020-29056
This CVE identifies a critical vulnerability in CDATA devices that allows unauthorized users to elevate their privileges.
What is CVE-2020-29056?
The vulnerability in CDATA devices enables an attacker to break out of a shell and achieve root access by exploiting the TFTP download configuration.
The Impact of CVE-2020-29056
The exploitation of this vulnerability can lead to unauthorized users gaining full control over the affected CDATA devices, compromising their security and integrity.
Technical Details of CVE-2020-29056
This section provides in-depth technical insights into the CVE-2020-29056 vulnerability.
Vulnerability Description
The vulnerability allows attackers to escape from a shell and escalate their privileges to root by leveraging the TFTP download configuration on CDATA devices.
Affected Systems and Versions
- CDATA 72408A
- CDATA 9008A
- CDATA 9016A
- CDATA 92408A
- CDATA 92416A
- CDATA 9288
- CDATA 97016
- CDATA 97024P
- CDATA 97028P
- CDATA 97042P
- CDATA 97084P
- CDATA 97168P
- CDATA FD1002S
- CDATA FD1104
- CDATA FD1104B
- CDATA FD1104S
- CDATA FD1104SN
- CDATA FD1108S
- CDATA FD1204S-R2
- CDATA FD1204SN
- CDATA FD1204SN-R2
- CDATA FD1208S-R2
- CDATA FD1216S-R1
- CDATA FD1608GS
- CDATA FD1608SN
- CDATA FD1616GS
- CDATA FD1616SN
- CDATA FD8000
Exploitation Mechanism
The vulnerability is exploited by manipulating the TFTP download configuration to escape the shell and gain root privileges on the affected CDATA devices.
Mitigation and Prevention
Protecting systems from CVE-2020-29056 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Disable TFTP services if not essential for operations.
- Implement network segmentation to restrict access to vulnerable devices.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch CDATA devices to mitigate known vulnerabilities.
- Conduct security audits and penetration testing to identify and address potential weaknesses.
Patching and Updates
- Apply security patches provided by CDATA to address the CVE-2020-29056 vulnerability.