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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.

CVE-2017-16544 is a high-severity vulnerability found in BusyBox versions up to 1.27.2, specifically within the add_match function in the libbb/lineedit.c source file. BusyBox is a widely used software suite that provides several Unix utilities in a single executable, commonly deployed in embedded systems and lightweight Linux environments. The vulnerability arises from the tab autocomplete feature of the shell, which is designed to assist users by listing filenames in a directory. However, this feature does not properly sanitize filenames before processing them. As a result, if a filename contains terminal escape sequences, these sequences are executed by the terminal when the autocomplete function is triggered. This behavior can be exploited by an attacker who can place maliciously crafted filenames on the filesystem. When a user triggers autocomplete in a directory containing such filenames, the escape sequences execute arbitrary commands or manipulate the terminal environment. Potential impacts include arbitrary code execution, unauthorized file writes, or other attacks that compromise system integrity and confidentiality. The vulnerability is classified under CWE-94 (Improper Control of Generation of Code), indicating that untrusted input is executed as code. The CVSS v3.1 base score is 8.8, reflecting high severity with network attack vector, low attack complexity, requiring privileges, no user interaction, and high impact on confidentiality, integrity, and availability. No known exploits have been reported in the wild, and no official patches are linked in the provided data, suggesting that mitigation may require manual updates or configuration changes. This vulnerability is particularly relevant in environments where BusyBox is used as the shell interface, especially embedded devices and IoT systems that rely on BusyBox for command-line utilities.

Detailed information about CVE-2017-16544: n/a in n/a affecting n/a n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2017-16544: n/a in n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2017-16544: n/a in n/a

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