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Security reinforcement of Bash vulnerabilities

Shulou Source: shulou.com Published: 2022-06-01 08:34:43 10月02日 Update

Bash vulnerability reinforcement Scheme

1 vulnerability description

Security reinforcement was done some time ago, using Green Alliance's BVS scanning host. According to the scanned report, there are two kinds of Bash vulnerabilities, namely:

① GNU Bash environment variable remote command execution vulnerability (CVE-2014-6271)

GNU Bash 4.3 and previous versions have a security vulnerability when evaluating some constructed environment variables, which can be triggered by adding extra strings to the function definition in the value of the environment variable. * * users can use this vulnerability to change or bypass environment restrictions to execute shell commands.

② GNU BashCVE-2014-6271 incomplete fix remote code execution vulnerability (CVE-2014-7169)

Affected system: GNU Bash

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