CVE-2018-15473

critical-risk
Published 2018-08-17

OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.

Do I need to act?

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90.4% chance of exploitation in next 30 days
EPSS score — higher than 10% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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3 public exploits available
45233, 45210, 45939
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (20)

Aff Baseboard Management Controller

Affected Vendors

Debian Redhat Oracle Openbsd Siemens Canonical Netapp

References (36)

Mailing List http://www.openwall.com/lists/oss-security/2018/08/15/5
Broken Link http://www.securityfocus.com/bid/105140
Broken Link http://www.securitytracker.com/id/1041487
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0711
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:2143
Issue Tracking https://bugs.debian.org/906236
Patch https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Patch https://github.com/openbsd/src/commit/779974d35b4859c07bc3cb8a12c74b43b0a7d1e0
Mailing List https://lists.debian.org/debian-lts-announce/2018/08/msg00022.html
Third Party Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0011
Third Party Advisory https://security.gentoo.org/glsa/201810-03
Third Party Advisory https://security.netapp.com/advisory/ntap-20181101-0001/
Third Party Advisory https://usn.ubuntu.com/3809-1/
Third Party Advisory https://www.debian.org/security/2018/dsa-4280
Exploit https://www.exploit-db.com/exploits/45210/
Exploit https://www.exploit-db.com/exploits/45233/
Exploit https://www.exploit-db.com/exploits/45939/
Patch https://www.oracle.com/security-alerts/cpujan2020.html
Mailing List http://www.openwall.com/lists/oss-security/2018/08/15/5
Broken Link http://www.securityfocus.com/bid/105140
and 16 more references
70
/ 100
critical-risk
Severity 21/34 · High
Exploitability 27/34 · High
Exposure 22/34 · High