Jump to content
Sign in to follow this  

Severe Auth Bypass and Priv-Esc Vulnerabilities Disclosed in OpenBSD

Recommended Posts

OpenBSD, an open-source operating system built with security in mind, has been found vulnerable to four new high-severity security vulnerabilities, one of which is an old-school type authentication bypass vulnerability in BSD Auth framework.

The other three vulnerabilities are privilege escalation issues that could allow local users or malicious software to gain privileges of an auth group, root, as well as of other users, respectively.

The vulnerabilities were discovered and reported by Qualys Research Labs earlier this week, in response to which OpenBSD developers released security patches for OpenBSD 6.5 and OpenBSD 6.6 just yesterday—that's in less than 40 hours.


- OpenBSD Authentication Bypass (CVE-2019-19521)

- OpenBSD Local Privilege Escalation Flaws (CVE-2019-19520, CVE-2019-19522, CVE-2019-19519)


Qualys PoC: https://www.qualys.com/2019/12/04/cve-2019-19521/authentication-vulnerabilities-openbsd.txt

Source: https://thehackernews.com/2019/12/openbsd-authentication-vulnerability.html

  • Upvote 2

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Create New...