Vulnerability in NetApp Cn1610
CVE-2018-20839
systemd 242 changes the VT1 mode upon a logout, which allows attackers to read cleartext passwords in certain circumstances, such as watching a shutdown, or using Ctrl-Alt-F1 and Ctrl-Alt-F2. This occurs because the KDGKBMODE (aka current keyboard mode) check is mishandled.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.025 (84.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
Public proof-of-concept exploits
References
- bugs.launchpad.net/ubuntu/+source/systemd/+bug/1803993 (Third Party Advisory, Issue Tracking)
- github.com/systemd/systemd/commit/9725f1a10f80f5e0ae7d9b60547458622aeb322f (Patch)
- github.com/systemd/systemd/pull/12378 (Patch, Issue Tracking)
- www.securityfocus.com/bid/108389 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- security.netapp.com/advisory/ntap-20190530-0002/ (Third Party Advisory)
- lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac… (mailing-list, Mailing List)
Frequently asked questions
- What is CVE-2018-20839?
- CVE-2018-20839 is a medium-severity vulnerability in NetApp Cn1610. CVSS score: 4.3/10. Published 2019-05-17.
- How severe is CVE-2018-20839?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2018-20839 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.