What is the CVSS score of CVE-2020-29056?

CVE-2020-29056 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.0%.

Is there a public PoC exploit available for CVE-2020-29056?

Yes, a public proof-of-concept exploit is available for CVE-2020-29056. Prioritise patching immediately. EPSS: 2.0%.

72408A Firmware CVE-2020-29056

CRITICAL

OS Command Injection (CWE-78)

2020-11-24 cve@mitre.org

Command Injection 72408A Firmware 9008A Firmware 9016A Firmware 92408A Firmware 92416A Firmware 9288 Firmware 97016 Firmware 97024P Firmware 97028P Firmware 97042P Firmware 97084P Firmware 97168P Firmware Fd1002S Firmware Fd1104 Firmware Fd1104B Firmware Fd1104S Firmware Fd1104Sn Firmware Fd1108S Firmware Fd1204S R2 Firmware Fd1204Sn Firmware Fd1204Sn R2 Firmware Fd1208S R2 Firmware Fd1216S R1 Firmware Fd1608Gs Firmware Fd1608Sn Firmware Fd1616Gs Firmware Fd1616Sn Firmware Fd8000 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 24, 2020 - 21:15 nvd

CRITICAL 9.8

DescriptionNVD

An issue was discovered on CDATA 72408A, 9008A, 9016A, 92408A, 92416A, 9288, 97016, 97024P, 97028P, 97042P, 97084P, 97168P, FD1002S, FD1104, FD1104B, FD1104S, FD1104SN, FD1108S, FD1204S-R2, FD1204SN, FD1204SN-R2, FD1208S-R2, FD1216S-R1, FD1608GS, FD1608SN, FD1616GS, FD1616SN, and FD8000 devices. One can escape from a shell and acquire root privileges by leveraging the TFTP download configuration.

AnalysisAI

An issue was discovered on CDATA 72408A, 9008A, 9016A, 92408A, 92416A, 9288, 97016, 97024P, 97028P, 97042P, 97084P, 97168P, FD1002S, FD1104, FD1104B, FD1104S, FD1104SN, FD1108S, FD1204S-R2, FD1204SN,. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. An issue was discovered on CDATA 72408A, 9008A, 9016A, 92408A, 92416A, 9288, 97016, 97024P, 97028P, 97042P, 97084P, 97168P, FD1002S, FD1104, FD1104B, FD1104S, FD1104SN, FD1108S, FD1204S-R2, FD1204SN, FD1204SN-R2, FD1208S-R2, FD1216S-R1, FD1608GS, FD1608SN, FD1616GS, FD1616SN, and FD8000 devices. One can escape from a shell and acquire root privileges by leveraging the TFTP download configuration. Affected products include: Cdatatec 72408A Firmware, Cdatatec 9008A Firmware, Cdatatec 9016A Firmware, Cdatatec 92408A Firmware, Cdatatec 92416A Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.