CVE-2014-6271 vulnerability in GNU and Other Products
Published on September 24, 2014
Known Exploited Vulnerability
This GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute code.
The following remediation steps are recommended / required by July 28, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2014-6271 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2014-6271 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2014-6271
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Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.