Privilege escalation in Opendoas Project

CVE-2023-28339

OpenDoas through 6.8.2, when TIOCSTI is available, allows privilege escalation because of sharing a terminal with the original session. NOTE: TIOCSTI is unavailable in OpenBSD 6.0 and later, and can be made unavailable in the Linux kernel 6.2 and later.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (48.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-28339: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: -0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-28339?
CVE-2023-28339 is a high-severity vulnerability in Opendoas Project, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2023-03-14.
How severe is CVE-2023-28339?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-28339 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.