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GNU Bash Environment Variable Handling Shell Remote Command Execution Vulnerability (FTP Check)

Information

Severity

Severity

Critical

Family

Family

FTP

CVSSv2 Base

CVSSv2 Base

10.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

9 years ago

Modified

Modified

5 years ago

Summary

This host is installed with GNU Bash Shell and is prone to remote command execution vulnerability.

Insight

Insight

GNU bash contains a flaw that is triggered when evaluating environment variables passed from another environment. After processing a function definition, bash continues to process trailing strings.

Affected Software

Affected Software

GNU Bash through 4.3

Detection Method

Detection Method

Send a FTP login request and check remote command execution.

Solution

Solution

Apply the patch or upgrade to latest version.

Common Vulnerabilities and Exposures (CVE)