---
id: CVE-1999-1197
title: >-
  TIOCCONS in SunOS 4.1.1 does not properly check the permissions of a user who
  tries to redirect console output and input, which could allow a local user to
  gain privileges.
summary: >-
  TIOCCONS in SunOS 4.1.1 does not properly check the permissions of a user who
  tries to redirect console output and input, which could allow a local user to
  gain privileges.
severity: high
cvss: 7.2
cvssVector: 'AV:L/AC:L/Au:N/C:C/I:C/A:C'
published: '1990-12-20'
updated: '2026-06-16'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-1999-1197'
references:
  - url: 'http://www.cert.org/advisories/CA-1990-12.html'
    label: cve@mitre.org
  - url: 'http://www.iss.net/security_center/static/7140.php'
    label: cve@mitre.org
  - url: 'http://www.securityfocus.com/bid/14'
    label: cve@mitre.org
  - url: 'http://www.cert.org/advisories/CA-1990-12.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.iss.net/security_center/static/7140.php'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.securityfocus.com/bid/14'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00386
epssPercentile: 0.29873
ingestedAt: '2026-06-19T03:39:00.676Z'
---

## Overview

TIOCCONS in SunOS 4.1.1 does not properly check the permissions of a user who tries to redirect console output and input, which could allow a local user to gain privileges.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.