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CVE-2017-16544

8.8 · HIGH

In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of the shell, used to get a list of filenames in a directory, does not sanitize filenames and r…

Published Nov 20, 2017CWE-94EPSS 6.14%

Overview

CVE-2017-16544 is a high-severity vulnerability. It was published on November 20, 2017 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

In the add_match function in libbb/lineedit.c in BusyBox through 1.27.2, the tab autocomplete feature of the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in executing any escape sequence in the terminal. This could potentially result in code execution, arbitrary file writes, or other attacks.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.htmlRefpacketstormsecurity.com/files/154536/VMware-Security-Advisory-2019-0013.htmlRefpacketstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.htmlRefseclists.org/fulldisclosure/2019/Jun/18Refseclists.org/fulldisclosure/2019/Sep/7Refseclists.org/fulldisclosure/2020/Aug/20Refseclists.org/fulldisclosure/2020/Mar/15Refseclists.org/fulldisclosure/2020/Sep/6Refseclists.org/fulldisclosure/2021/Aug/21Refseclists.org/fulldisclosure/2021/Jan/39

How CyberStrike helps

Frequently asked questions

What is CVE-2017-16544?

CVE-2017-16544 is a high-severity vulnerability. It was published on November 20, 2017 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2017-16544?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-16544?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-16544?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-16544 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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