CVE-2018-15919

moderate-risk

Published 2018-08-28

Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'

Do I need to act?

2.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.3/10 Medium

NETWORK / LOW complexity

Affected Products (6)

Openssh

Cloud Backup

Data Ontap Edge

Ontap Select Deploy

Steelstore

Cn1610 Firmware

Affected Vendors

Openbsd Netapp

References (6)

Mailing List http://seclists.org/oss-sec/2018/q3/180

Third Party Advisory http://www.securityfocus.com/bid/105163

Third Party Advisory https://security.netapp.com/advisory/ntap-20181221-0001/

Mailing List http://seclists.org/oss-sec/2018/q3/180

Third Party Advisory http://www.securityfocus.com/bid/105163

Third Party Advisory https://security.netapp.com/advisory/ntap-20181221-0001/

/ 100

moderate-risk

Severity 21/34 · High

Exploitability 5/34 · Minimal

Exposure 13/34 · Low