CVE-2018-15473
Summary
| CVE | CVE-2018-15473 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-08-17 19:29:00 UTC |
| Updated | 2023-02-23 23:13:00 UTC |
| Description | 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. |
Risk And Classification
Problem Types: CWE-362
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 14.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 14.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Debian | Debian Linux | 8.0 | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Operating System | Debian | Debian Linux | 8.0 | All | All | All |
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Application | Netapp | Aff Baseboard Management Controller | - | All | All | All |
| Application | Netapp | Aff Baseboard Management Controller | - | All | All | All |
| Application | Netapp | Cloud Backup | - | All | All | All |
| Application | Netapp | Cloud Backup | - | All | All | All |
| Operating System | Netapp | Clustered Data Ontap | - | All | All | All |
| Operating System | Netapp | Clustered Data Ontap | - | All | All | All |
| Operating System | Netapp | Clustered Data Ontap | - | All | All | All |
| Operating System | Netapp | Clustered Data Ontap | - | All | All | All |
| Hardware | Netapp | Cn1610 | - | All | All | All |
| Hardware | Netapp | Cn1610 | - | All | All | All |
| Operating System | Netapp | Cn1610 Firmware | - | All | All | All |
| Operating System | Netapp | Cn1610 Firmware | - | All | All | All |
| Operating System | Netapp | Data Ontap | - | All | All | All |
| Operating System | Netapp | Data Ontap | - | All | All | All |
| Application | Netapp | Data Ontap Edge | - | All | All | All |
| Application | Netapp | Data Ontap Edge | - | All | All | All |
| Application | Netapp | Fas Baseboard Management Controller | - | All | All | All |
| Application | Netapp | Fas Baseboard Management Controller | - | All | All | All |
| Application | Netapp | Oncommand Unified Manager | All | All | All | All |
| Application | Netapp | Oncommand Unified Manager | All | All | All | All |
| Application | Netapp | Ontap Select Deploy | - | All | All | All |
| Application | Netapp | Ontap Select Deploy | - | All | All | All |
| Application | Netapp | Service Processor | - | All | All | All |
| Application | Netapp | Service Processor | - | All | All | All |
| Application | Netapp | Steelstore Cloud Integrated Storage | - | All | All | All |
| Application | Netapp | Steelstore Cloud Integrated Storage | - | All | All | All |
| Application | Netapp | Storage Replication Adapter | All | All | All | All |
| Application | Netapp | Storage Replication Adapter | All | All | All | All |
| Application | Netapp | Vasa Provider | All | All | All | All |
| Application | Netapp | Vasa Provider | All | All | All | All |
| Application | Netapp | Virtual Storage Console | All | All | All | All |
| Application | Netapp | Virtual Storage Console | All | All | All | All |
| Application | Openbsd | Openssh | All | All | All | All |
| Application | Oracle | Sun Zfs Storage Appliance Kit | 8.8.6 | All | All | All |
| Operating System | Redhat | Enterprise Linux Desktop | 6.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Desktop | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Desktop | 6.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server | 6.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Server | 6.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Workstation | 6.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Workstation | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux Workstation | 6.0 | All | All | All |
| Hardware | Siemens | Scalance X204rna | - | All | All | All |
| Operating System | Siemens | Scalance X204rna Firmware | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Security Advisory | CONFIRM | psirt.global.sonicwall.com | Third Party Advisory |
| oss-security - OpenSSH Username Enumeration | MISC | www.openwall.com | Mailing List, Patch, Third Party Advisory |
| OpenSSH Authentication Attempt Processing Lets Remote Users Determine Valid Usernames on the Target System - SecurityTracker | SECTRACK | www.securitytracker.com | Patch, Third Party Advisory, VDB Entry |
| OpenSSH 2.3 < 7.4 - Username Enumeration (PoC) | EXPLOIT-DB | www.exploit-db.com | Exploit, Third Party Advisory, VDB Entry |
| CVE-2018-15473 OpenSSH Username Enumeration Vulnerability in NetApp Products | NetApp Product Security | CONFIRM | security.netapp.com | Third Party Advisory |
| OpenSSH < 7.7 - User Enumeration (2) - Linux remote Exploit | EXPLOIT-DB | www.exploit-db.com | Exploit, Third Party Advisory, VDB Entry |
| delay bailout for invalid authenticating user until after the packet · openbsd/src@779974d · GitHub | MISC | github.com | Third Party Advisory |
| [SECURITY] [DLA-1474-1] openssh security update | MLIST | lists.debian.org | Mailing List, Third Party Advisory |
| #906236 - openssh: CVE-2018-15473: delay bailout for invalid authenticating user until after the packet - Debian Bug report logs | MISC | bugs.debian.org | Issue Tracking, Mailing List, Patch, Third Party Advisory |
| OpenSSH 2.3 < 7.7 - Username Enumeration | EXPLOIT-DB | www.exploit-db.com | Exploit, Third Party Advisory, VDB Entry |
| Debian -- Security Information -- DSA-4280-1 openssh | DEBIAN | www.debian.org | Third Party Advisory |
| Red Hat Customer Portal | REDHAT | access.redhat.com | |
| Red Hat Customer Portal | REDHAT | access.redhat.com | Third Party Advisory |
| cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf | CONFIRM | cert-portal.siemens.com | |
| OpenSSH CVE-2018-15473 User Enumeration Vulnerability | BID | www.securityfocus.com | Third Party Advisory, VDB Entry |
| OpenSSH: User enumeration vulnerability (GLSA 201810-03) — Gentoo security | GENTOO | security.gentoo.org | Third Party Advisory |
| Oracle Critical Patch Update Advisory - January 2020 | MISC | www.oracle.com | |
| USN-3809-1: OpenSSH vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 296091 Oracle Solaris 11.4 Support Repository Update (SRU) 6.1.4 Missing (CPUJAN2019)
- 377465 Alibaba Cloud Linux Security Update for openssh (ALINUX2-SA-2019:0085)
- 378326 Virtuozzo Linux Security Update for openssh (VZLSA-2019:0711)
- 378878 Citrix XenServer Security Updates (CTX272237)
- 500486 Alpine Linux Security Update for openssh
- 504245 Alpine Linux Security Update for openssh
- 591280 Siemens SCALANCE X-200RNA Switch Devices Denial of Service (DoS) Multiple Vulnerabilities (ICSA-22-349-21, SSA-412672)
- 751241 OpenSUSE Security Update for ssh-audit (openSUSE-SU-2021:1383-1)