PT-2023-21661 · Opendoas+1 · Opendoas+1

Published 2023-03-14 · Updated 2023-03-21 · CVE-2023-28339

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions OpenDoas versions 6.8.2 and earlier

Description The issue allows privilege escalation due to sharing a terminal with the original session when TIOCSTI is available. TIOCSTI is unavailable in OpenBSD 6.0 and later, and can be made unavailable in the Linux kernel 6.2 and later.

Recommendations For OpenDoas versions 6.8.2 and earlier, consider disabling the use of TIOCSTI to minimize the risk of exploitation until a patch is available. Restrict access to terminals that may be shared with the original session to prevent privilege escalation.

Exploit

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2023-28339

Affected Products

Debian

Opendoas

References · 15

• 🔥 https://github.com/Duncaen/OpenDoas/issues/106 · Exploit
• https://security-tracker.debian.org/tracker/source-package/doas · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-28339 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28339 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-28339 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-28339 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-28339 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-28339 · Security Note
• https://osv.dev/vulnerability/CVE-2023-28339 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/opendoas · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-28339 · Vendor Advisory
• https://openwall.com/lists/oss-security/2023/03/14/4 · Note
• https://packages.debian.org/src:opendoas · Note
• https://packages.debian.org/src:doas · Note
• https://t.me/cibsecurity/60023 · Telegram Post