CVE-2016-7076: sudo_project sudo Incomplete List of Disallowed Inputs

Vulnerability summary

CVE-2016-7076 is a high (CVSS 7.8) Incomplete List of Disallowed Inputs vulnerability in sudo_project sudo. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 39.6% of scored vulnerabilities.

Timeline

1. 29-05-2018
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

sudo before version 1.8.18p1 is vulnerable to a bypass in the sudo noexec restriction if application run via sudo executed wordexp() C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to execute arbitrary commands with elevated privileges.

• CWE-184Incomplete List of Disallowed InputsThe product implements a protection mechanism that relies on a list of inputs (or properties of inputs) that are not allowed by policy or otherwise require other action to neutralize before additional processing takes place, but the list is incomplete.
• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.